diff options
Diffstat (limited to 'sound/core')
| -rw-r--r-- | sound/core/Kconfig | 3 | ||||
| -rw-r--r-- | sound/core/compress_offload.c | 360 | ||||
| -rw-r--r-- | sound/core/control.c | 2 | ||||
| -rw-r--r-- | sound/core/init.c | 14 | ||||
| -rw-r--r-- | sound/core/oss/mixer_oss.c | 4 | ||||
| -rw-r--r-- | sound/core/oss/rate.c | 2 | ||||
| -rw-r--r-- | sound/core/pcm_native.c | 24 | ||||
| -rw-r--r-- | sound/core/sound.c | 2 | ||||
| -rw-r--r-- | sound/core/ump.c | 6 |
9 files changed, 392 insertions, 25 deletions
diff --git a/sound/core/Kconfig b/sound/core/Kconfig index 2c5b9f964703..48db44fa56fe 100644 --- a/sound/core/Kconfig +++ b/sound/core/Kconfig @@ -59,6 +59,9 @@ config SND_CORE_TEST config SND_COMPRESS_OFFLOAD tristate +config SND_COMPRESS_ACCEL + bool + config SND_JACK bool diff --git a/sound/core/compress_offload.c b/sound/core/compress_offload.c index b8c0d6edbdd1..86ed2fbee0c8 100644 --- a/sound/core/compress_offload.c +++ b/sound/core/compress_offload.c @@ -24,6 +24,7 @@ #include <linux/types.h> #include <linux/uio.h> #include <linux/uaccess.h> +#include <linux/dma-buf.h> #include <linux/module.h> #include <linux/compat.h> #include <sound/core.h> @@ -54,6 +55,12 @@ struct snd_compr_file { static void error_delayed_work(struct work_struct *work); +#if IS_ENABLED(CONFIG_SND_COMPRESS_ACCEL) +static void snd_compr_task_free_all(struct snd_compr_stream *stream); +#else +static inline void snd_compr_task_free_all(struct snd_compr_stream *stream) { } +#endif + /* * a note on stream states used: * we use following states in the compressed core @@ -85,6 +92,8 @@ static int snd_compr_open(struct inode *inode, struct file *f) dirn = SND_COMPRESS_PLAYBACK; else if ((f->f_flags & O_ACCMODE) == O_RDONLY) dirn = SND_COMPRESS_CAPTURE; + else if ((f->f_flags & O_ACCMODE) == O_RDWR) + dirn = SND_COMPRESS_ACCEL; else return -EINVAL; @@ -125,6 +134,9 @@ static int snd_compr_open(struct inode *inode, struct file *f) } runtime->state = SNDRV_PCM_STATE_OPEN; init_waitqueue_head(&runtime->sleep); +#if IS_ENABLED(CONFIG_SND_COMPRESS_ACCEL) + INIT_LIST_HEAD(&runtime->tasks); +#endif data->stream.runtime = runtime; f->private_data = (void *)data; scoped_guard(mutex, &compr->lock) @@ -154,6 +166,8 @@ static int snd_compr_free(struct inode *inode, struct file *f) break; } + snd_compr_task_free_all(&data->stream); + data->stream.ops->free(&data->stream); if (!data->stream.runtime->dma_buffer_p) kfree(data->stream.runtime->buffer); @@ -226,6 +240,9 @@ snd_compr_ioctl_avail(struct snd_compr_stream *stream, unsigned long arg) struct snd_compr_avail ioctl_avail; size_t avail; + if (stream->direction == SND_COMPRESS_ACCEL) + return -EBADFD; + avail = snd_compr_calc_avail(stream, &ioctl_avail); ioctl_avail.avail = avail; @@ -287,8 +304,10 @@ static ssize_t snd_compr_write(struct file *f, const char __user *buf, return -EFAULT; stream = &data->stream; + if (stream->direction == SND_COMPRESS_ACCEL) + return -EBADFD; guard(mutex)(&stream->device->lock); - /* write is allowed when stream is running or has been steup */ + /* write is allowed when stream is running or has been setup */ switch (stream->runtime->state) { case SNDRV_PCM_STATE_SETUP: case SNDRV_PCM_STATE_PREPARED: @@ -336,6 +355,8 @@ static ssize_t snd_compr_read(struct file *f, char __user *buf, return -EFAULT; stream = &data->stream; + if (stream->direction == SND_COMPRESS_ACCEL) + return -EBADFD; guard(mutex)(&stream->device->lock); /* read is allowed when stream is running, paused, draining and setup @@ -385,6 +406,7 @@ static __poll_t snd_compr_poll(struct file *f, poll_table *wait) { struct snd_compr_file *data = f->private_data; struct snd_compr_stream *stream; + struct snd_compr_runtime *runtime; size_t avail; __poll_t retval = 0; @@ -392,10 +414,11 @@ static __poll_t snd_compr_poll(struct file *f, poll_table *wait) return EPOLLERR; stream = &data->stream; + runtime = stream->runtime; guard(mutex)(&stream->device->lock); - switch (stream->runtime->state) { + switch (runtime->state) { case SNDRV_PCM_STATE_OPEN: case SNDRV_PCM_STATE_XRUN: return snd_compr_get_poll(stream) | EPOLLERR; @@ -403,23 +426,37 @@ static __poll_t snd_compr_poll(struct file *f, poll_table *wait) break; } - poll_wait(f, &stream->runtime->sleep, wait); + poll_wait(f, &runtime->sleep, wait); + +#if IS_ENABLED(CONFIG_SND_COMPRESS_ACCEL) + if (stream->direction == SND_COMPRESS_ACCEL) { + struct snd_compr_task_runtime *task; + if (runtime->fragments > runtime->active_tasks) + retval |= EPOLLOUT | EPOLLWRNORM; + task = list_first_entry_or_null(&runtime->tasks, + struct snd_compr_task_runtime, + list); + if (task && task->state == SND_COMPRESS_TASK_STATE_FINISHED) + retval |= EPOLLIN | EPOLLRDNORM; + return retval; + } +#endif avail = snd_compr_get_avail(stream); pr_debug("avail is %ld\n", (unsigned long)avail); /* check if we have at least one fragment to fill */ - switch (stream->runtime->state) { + switch (runtime->state) { case SNDRV_PCM_STATE_DRAINING: /* stream has been woken up after drain is complete * draining done so set stream state to stopped */ retval = snd_compr_get_poll(stream); - stream->runtime->state = SNDRV_PCM_STATE_SETUP; + runtime->state = SNDRV_PCM_STATE_SETUP; break; case SNDRV_PCM_STATE_RUNNING: case SNDRV_PCM_STATE_PREPARED: case SNDRV_PCM_STATE_PAUSED: - if (avail >= stream->runtime->fragment_size) + if (avail >= runtime->fragment_size) retval = snd_compr_get_poll(stream); break; default: @@ -521,6 +558,9 @@ static int snd_compr_allocate_buffer(struct snd_compr_stream *stream, unsigned int buffer_size; void *buffer = NULL; + if (stream->direction == SND_COMPRESS_ACCEL) + goto params; + buffer_size = params->buffer.fragment_size * params->buffer.fragments; if (stream->ops->copy) { buffer = NULL; @@ -543,18 +583,30 @@ static int snd_compr_allocate_buffer(struct snd_compr_stream *stream, if (!buffer) return -ENOMEM; } - stream->runtime->fragment_size = params->buffer.fragment_size; - stream->runtime->fragments = params->buffer.fragments; + stream->runtime->buffer = buffer; stream->runtime->buffer_size = buffer_size; +params: + stream->runtime->fragment_size = params->buffer.fragment_size; + stream->runtime->fragments = params->buffer.fragments; return 0; } -static int snd_compress_check_input(struct snd_compr_params *params) +static int +snd_compress_check_input(struct snd_compr_stream *stream, struct snd_compr_params *params) { + u32 max_fragments; + /* first let's check the buffer parameter's */ - if (params->buffer.fragment_size == 0 || - params->buffer.fragments > U32_MAX / params->buffer.fragment_size || + if (params->buffer.fragment_size == 0) + return -EINVAL; + + if (stream->direction == SND_COMPRESS_ACCEL) + max_fragments = 64; /* safe value */ + else + max_fragments = U32_MAX / params->buffer.fragment_size; + + if (params->buffer.fragments > max_fragments || params->buffer.fragments == 0) return -EINVAL; @@ -583,7 +635,7 @@ snd_compr_set_params(struct snd_compr_stream *stream, unsigned long arg) if (IS_ERR(params)) return PTR_ERR(params); - retval = snd_compress_check_input(params); + retval = snd_compress_check_input(stream, params); if (retval) return retval; @@ -939,6 +991,264 @@ static int snd_compr_partial_drain(struct snd_compr_stream *stream) return snd_compress_wait_for_drain(stream); } +#if IS_ENABLED(CONFIG_SND_COMPRESS_ACCEL) + +static struct snd_compr_task_runtime * +snd_compr_find_task(struct snd_compr_stream *stream, __u64 seqno) +{ + struct snd_compr_task_runtime *task; + + list_for_each_entry(task, &stream->runtime->tasks, list) { + if (task->seqno == seqno) + return task; + } + return NULL; +} + +static void snd_compr_task_free(struct snd_compr_task_runtime *task) +{ + if (task->output) + dma_buf_put(task->output); + if (task->input) + dma_buf_put(task->input); + kfree(task); +} + +static u64 snd_compr_seqno_next(struct snd_compr_stream *stream) +{ + u64 seqno = ++stream->runtime->task_seqno; + if (seqno == 0) + seqno = ++stream->runtime->task_seqno; + return seqno; +} + +static int snd_compr_task_new(struct snd_compr_stream *stream, struct snd_compr_task *utask) +{ + struct snd_compr_task_runtime *task; + int retval; + + if (stream->runtime->total_tasks >= stream->runtime->fragments) + return -EBUSY; + if (utask->origin_seqno != 0 || utask->input_size != 0) + return -EINVAL; + task = kzalloc(sizeof(*task), GFP_KERNEL); + if (task == NULL) + return -ENOMEM; + task->seqno = utask->seqno = snd_compr_seqno_next(stream); + task->input_size = utask->input_size; + retval = stream->ops->task_create(stream, task); + if (retval < 0) + goto cleanup; + utask->input_fd = dma_buf_fd(task->input, O_WRONLY|O_CLOEXEC); + if (utask->input_fd < 0) { + retval = utask->input_fd; + goto cleanup; + } + utask->output_fd = dma_buf_fd(task->output, O_RDONLY|O_CLOEXEC); + if (utask->output_fd < 0) { + retval = utask->output_fd; + goto cleanup; + } + /* keep dmabuf reference until freed with task free ioctl */ + dma_buf_get(utask->input_fd); + dma_buf_get(utask->output_fd); + list_add_tail(&task->list, &stream->runtime->tasks); + stream->runtime->total_tasks++; + return 0; +cleanup: + snd_compr_task_free(task); + return retval; +} + +static int snd_compr_task_create(struct snd_compr_stream *stream, unsigned long arg) +{ + struct snd_compr_task *task __free(kfree) = NULL; + int retval; + + if (stream->runtime->state != SNDRV_PCM_STATE_SETUP) + return -EPERM; + task = memdup_user((void __user *)arg, sizeof(*task)); + if (IS_ERR(task)) + return PTR_ERR(no_free_ptr(task)); + retval = snd_compr_task_new(stream, task); + if (retval >= 0) + if (copy_to_user((void __user *)arg, task, sizeof(*task))) + retval = -EFAULT; + return retval; +} + +static int snd_compr_task_start_prepare(struct snd_compr_task_runtime *task, + struct snd_compr_task *utask) +{ + if (task == NULL) + return -EINVAL; + if (task->state >= SND_COMPRESS_TASK_STATE_FINISHED) + return -EBUSY; + if (utask->input_size > task->input->size) + return -EINVAL; + task->flags = utask->flags; + task->input_size = utask->input_size; + task->state = SND_COMPRESS_TASK_STATE_IDLE; + return 0; +} + +static int snd_compr_task_start(struct snd_compr_stream *stream, struct snd_compr_task *utask) +{ + struct snd_compr_task_runtime *task; + int retval; + + if (utask->origin_seqno > 0) { + task = snd_compr_find_task(stream, utask->origin_seqno); + retval = snd_compr_task_start_prepare(task, utask); + if (retval < 0) + return retval; + task->seqno = utask->seqno = snd_compr_seqno_next(stream); + utask->origin_seqno = 0; + list_move_tail(&task->list, &stream->runtime->tasks); + } else { + task = snd_compr_find_task(stream, utask->seqno); + if (task && task->state != SND_COMPRESS_TASK_STATE_IDLE) + return -EBUSY; + retval = snd_compr_task_start_prepare(task, utask); + if (retval < 0) + return retval; + } + retval = stream->ops->task_start(stream, task); + if (retval >= 0) { + task->state = SND_COMPRESS_TASK_STATE_ACTIVE; + stream->runtime->active_tasks++; + } + return retval; +} + +static int snd_compr_task_start_ioctl(struct snd_compr_stream *stream, unsigned long arg) +{ + struct snd_compr_task *task __free(kfree) = NULL; + int retval; + + if (stream->runtime->state != SNDRV_PCM_STATE_SETUP) + return -EPERM; + task = memdup_user((void __user *)arg, sizeof(*task)); + if (IS_ERR(task)) + return PTR_ERR(no_free_ptr(task)); + retval = snd_compr_task_start(stream, task); + if (retval >= 0) + if (copy_to_user((void __user *)arg, task, sizeof(*task))) + retval = -EFAULT; + return retval; +} + +static void snd_compr_task_stop_one(struct snd_compr_stream *stream, + struct snd_compr_task_runtime *task) +{ + if (task->state != SND_COMPRESS_TASK_STATE_ACTIVE) + return; + stream->ops->task_stop(stream, task); + if (!snd_BUG_ON(stream->runtime->active_tasks == 0)) + stream->runtime->active_tasks--; + list_move_tail(&task->list, &stream->runtime->tasks); + task->state = SND_COMPRESS_TASK_STATE_IDLE; +} + +static void snd_compr_task_free_one(struct snd_compr_stream *stream, + struct snd_compr_task_runtime *task) +{ + snd_compr_task_stop_one(stream, task); + stream->ops->task_free(stream, task); + list_del(&task->list); + snd_compr_task_free(task); + stream->runtime->total_tasks--; +} + +static void snd_compr_task_free_all(struct snd_compr_stream *stream) +{ + struct snd_compr_task_runtime *task, *temp; + + list_for_each_entry_safe_reverse(task, temp, &stream->runtime->tasks, list) + snd_compr_task_free_one(stream, task); +} + +typedef void (*snd_compr_seq_func_t)(struct snd_compr_stream *stream, + struct snd_compr_task_runtime *task); + +static int snd_compr_task_seq(struct snd_compr_stream *stream, unsigned long arg, + snd_compr_seq_func_t fcn) +{ + struct snd_compr_task_runtime *task; + __u64 seqno; + int retval; + + if (stream->runtime->state != SNDRV_PCM_STATE_SETUP) + return -EPERM; + retval = get_user(seqno, (__u64 __user *)arg); + if (retval < 0) + return retval; + retval = 0; + if (seqno == 0) { + list_for_each_entry_reverse(task, &stream->runtime->tasks, list) + fcn(stream, task); + } else { + task = snd_compr_find_task(stream, seqno); + if (task == NULL) { + retval = -EINVAL; + } else { + fcn(stream, task); + } + } + return retval; +} + +static int snd_compr_task_status(struct snd_compr_stream *stream, + struct snd_compr_task_status *status) +{ + struct snd_compr_task_runtime *task; + + task = snd_compr_find_task(stream, status->seqno); + if (task == NULL) + return -EINVAL; + status->input_size = task->input_size; + status->output_size = task->output_size; + status->state = task->state; + return 0; +} + +static int snd_compr_task_status_ioctl(struct snd_compr_stream *stream, unsigned long arg) +{ + struct snd_compr_task_status *status __free(kfree) = NULL; + int retval; + + if (stream->runtime->state != SNDRV_PCM_STATE_SETUP) + return -EPERM; + status = memdup_user((void __user *)arg, sizeof(*status)); + if (IS_ERR(status)) + return PTR_ERR(no_free_ptr(status)); + retval = snd_compr_task_status(stream, status); + if (retval >= 0) + if (copy_to_user((void __user *)arg, status, sizeof(*status))) + retval = -EFAULT; + return retval; +} + +/** + * snd_compr_task_finished: Notify that the task was finished + * @stream: pointer to stream + * @task: runtime task structure + * + * Set the finished task state and notify waiters. + */ +void snd_compr_task_finished(struct snd_compr_stream *stream, + struct snd_compr_task_runtime *task) +{ + guard(mutex)(&stream->device->lock); + if (!snd_BUG_ON(stream->runtime->active_tasks == 0)) + stream->runtime->active_tasks--; + task->state = SND_COMPRESS_TASK_STATE_FINISHED; + wake_up(&stream->runtime->sleep); +} +EXPORT_SYMBOL_GPL(snd_compr_task_finished); + +#endif /* CONFIG_SND_COMPRESS_ACCEL */ + static long snd_compr_ioctl(struct file *f, unsigned int cmd, unsigned long arg) { struct snd_compr_file *data = f->private_data; @@ -968,6 +1278,27 @@ static long snd_compr_ioctl(struct file *f, unsigned int cmd, unsigned long arg) return snd_compr_set_metadata(stream, arg); case _IOC_NR(SNDRV_COMPRESS_GET_METADATA): return snd_compr_get_metadata(stream, arg); + } + + if (stream->direction == SND_COMPRESS_ACCEL) { +#if IS_ENABLED(CONFIG_SND_COMPRESS_ACCEL) + switch (_IOC_NR(cmd)) { + case _IOC_NR(SNDRV_COMPRESS_TASK_CREATE): + return snd_compr_task_create(stream, arg); + case _IOC_NR(SNDRV_COMPRESS_TASK_FREE): + return snd_compr_task_seq(stream, arg, snd_compr_task_free_one); + case _IOC_NR(SNDRV_COMPRESS_TASK_START): + return snd_compr_task_start_ioctl(stream, arg); + case _IOC_NR(SNDRV_COMPRESS_TASK_STOP): + return snd_compr_task_seq(stream, arg, snd_compr_task_stop_one); + case _IOC_NR(SNDRV_COMPRESS_TASK_STATUS): + return snd_compr_task_status_ioctl(stream, arg); + } +#endif + return -ENOTTY; + } + + switch (_IOC_NR(cmd)) { case _IOC_NR(SNDRV_COMPRESS_TSTAMP): return snd_compr_tstamp(stream, arg); case _IOC_NR(SNDRV_COMPRESS_AVAIL): @@ -1140,6 +1471,11 @@ int snd_compress_new(struct snd_card *card, int device, }; int ret; +#if !IS_ENABLED(CONFIG_SND_COMPRESS_ACCEL) + if (snd_BUG_ON(dirn == SND_COMPRESS_ACCEL)) + return -EINVAL; +#endif + compr->card = card; compr->device = device; compr->direction = dirn; diff --git a/sound/core/control.c b/sound/core/control.c index 2f790a7b1e90..0ddade871b52 100644 --- a/sound/core/control.c +++ b/sound/core/control.c @@ -1641,6 +1641,8 @@ static int snd_ctl_elem_add(struct snd_ctl_file *file, count = info->owner; if (count == 0) count = 1; + if (count > MAX_CONTROL_COUNT) + return -EINVAL; /* Arrange access permissions if needed. */ access = info->access; diff --git a/sound/core/init.c b/sound/core/init.c index b92aa7103589..114fb87de990 100644 --- a/sound/core/init.c +++ b/sound/core/init.c @@ -654,13 +654,19 @@ void snd_card_free(struct snd_card *card) } EXPORT_SYMBOL(snd_card_free); +/* check, if the character is in the valid ASCII range */ +static inline bool safe_ascii_char(char c) +{ + return isascii(c) && isalnum(c); +} + /* retrieve the last word of shortname or longname */ static const char *retrieve_id_from_card_name(const char *name) { const char *spos = name; while (*name) { - if (isspace(*name) && isalnum(name[1])) + if (isspace(*name) && safe_ascii_char(name[1])) spos = name + 1; name++; } @@ -687,12 +693,12 @@ static void copy_valid_id_string(struct snd_card *card, const char *src, { char *id = card->id; - while (*nid && !isalnum(*nid)) + while (*nid && !safe_ascii_char(*nid)) nid++; if (isdigit(*nid)) *id++ = isalpha(*src) ? *src : 'D'; while (*nid && (size_t)(id - card->id) < sizeof(card->id) - 1) { - if (isalnum(*nid)) + if (safe_ascii_char(*nid)) *id++ = *nid; nid++; } @@ -787,7 +793,7 @@ static ssize_t id_store(struct device *dev, struct device_attribute *attr, for (idx = 0; idx < copy; idx++) { c = buf[idx]; - if (!isalnum(c) && c != '_' && c != '-') + if (!safe_ascii_char(c) && c != '_' && c != '-') return -EINVAL; } memcpy(buf1, buf, copy); diff --git a/sound/core/oss/mixer_oss.c b/sound/core/oss/mixer_oss.c index 668604d0ec9d..05fc8911479c 100644 --- a/sound/core/oss/mixer_oss.c +++ b/sound/core/oss/mixer_oss.c @@ -900,8 +900,8 @@ static void snd_mixer_oss_slot_free(struct snd_mixer_oss_slot *chn) struct slot *p = chn->private_data; if (p) { if (p->allocated && p->assigned) { - kfree_const(p->assigned->name); - kfree_const(p->assigned); + kfree(p->assigned->name); + kfree(p->assigned); } kfree(p); } diff --git a/sound/core/oss/rate.c b/sound/core/oss/rate.c index 98269119347f..b56eeda5e30e 100644 --- a/sound/core/oss/rate.c +++ b/sound/core/oss/rate.c @@ -294,7 +294,7 @@ static int rate_action(struct snd_pcm_plugin *plugin, default: break; } - return 0; /* silenty ignore other actions */ + return 0; /* silently ignore other actions */ } int snd_pcm_plugin_build_rate(struct snd_pcm_substream *plug, diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index 5b9076829ade..b44d205cc838 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -2250,7 +2250,7 @@ static int snd_pcm_link(struct snd_pcm_substream *substream, int fd) bool nonatomic = substream->pcm->nonatomic; CLASS(fd, f)(fd); - if (!fd_file(f)) + if (fd_empty(f)) return -EBADFD; if (!is_pcm_file(fd_file(f))) return -EBADFD; @@ -3115,7 +3115,7 @@ struct snd_pcm_sync_ptr32 { } c; } __packed; -/* recalcuate the boundary within 32bit */ +/* recalculate the boundary within 32bit */ static snd_pcm_uframes_t recalculate_boundary(struct snd_pcm_runtime *runtime) { snd_pcm_uframes_t boundary; @@ -3774,6 +3774,26 @@ static int snd_pcm_mmap_control(struct snd_pcm_substream *substream, struct file #endif /* coherent mmap */ /* + * snd_pcm_mmap_data_open - increase the mmap counter + */ +static void snd_pcm_mmap_data_open(struct vm_area_struct *area) +{ + struct snd_pcm_substream *substream = area->vm_private_data; + + atomic_inc(&substream->mmap_count); +} + +/* + * snd_pcm_mmap_data_close - decrease the mmap counter + */ +static void snd_pcm_mmap_data_close(struct vm_area_struct *area) +{ + struct snd_pcm_substream *substream = area->vm_private_data; + + atomic_dec(&substream->mmap_count); +} + +/* * fault callback for mmapping a RAM page */ static vm_fault_t snd_pcm_mmap_data_fault(struct vm_fault *vmf) diff --git a/sound/core/sound.c b/sound/core/sound.c index b9db9aa0bfcb..6531a67f13b3 100644 --- a/sound/core/sound.c +++ b/sound/core/sound.c @@ -133,7 +133,7 @@ static struct snd_minor *autoload_device(unsigned int minor) /* /dev/aloadSEQ */ snd_request_other(minor); } - mutex_lock(&sound_mutex); /* reacuire lock */ + mutex_lock(&sound_mutex); /* reacquire lock */ return snd_minors[minor]; } #else /* !CONFIG_MODULES */ diff --git a/sound/core/ump.c b/sound/core/ump.c index cf22a17e38dd..5d4dd207e5ab 100644 --- a/sound/core/ump.c +++ b/sound/core/ump.c @@ -366,7 +366,7 @@ int snd_ump_block_new(struct snd_ump_endpoint *ump, unsigned int blk, { struct snd_ump_block *fb, *p; - if (blk < 0 || blk >= SNDRV_UMP_MAX_BLOCKS) + if (blk >= SNDRV_UMP_MAX_BLOCKS) return -EINVAL; if (snd_ump_get_block(ump, blk)) @@ -387,7 +387,7 @@ int snd_ump_block_new(struct snd_ump_endpoint *ump, unsigned int blk, fb->info.first_group = first_group; fb->info.num_groups = num_groups; /* fill the default name, may be overwritten to a better name */ - snprintf(fb->info.name, sizeof(fb->info.name), "Group %d-%d", + snprintf(fb->info.name, sizeof(fb->info.name), "Group %u-%u", first_group + 1, first_group + num_groups); /* put the entry in the ordered list */ @@ -1233,7 +1233,7 @@ static int fill_legacy_mapping(struct snd_ump_endpoint *ump) num = 0; for (i = 0; i < SNDRV_UMP_MAX_GROUPS; i++) - if (group_maps & (1U << i)) + if ((group_maps & (1U << i)) && ump->groups[i].valid) ump->legacy_mapping[num++] = i; return num; |