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-rw-r--r--include/sound/emu10k1.h1
-rw-r--r--sound/pci/emu10k1/emu10k1_main.c11
-rw-r--r--sound/pci/emu10k1/memory.c8
3 files changed, 6 insertions, 14 deletions
diff --git a/include/sound/emu10k1.h b/include/sound/emu10k1.h
index 4f42affe777c..db32b7de52e0 100644
--- a/include/sound/emu10k1.h
+++ b/include/sound/emu10k1.h
@@ -1718,7 +1718,6 @@ struct snd_emu10k1 {
struct snd_dma_buffer p16v_buffer;
struct snd_util_memhdr *memhdr; /* page allocation list */
- struct snd_emu10k1_memblk *reserved_page; /* reserved page */
struct list_head mapped_link_head;
struct list_head mapped_order_link_head;
diff --git a/sound/pci/emu10k1/emu10k1_main.c b/sound/pci/emu10k1/emu10k1_main.c
index ccf4415a1c7b..a0a4d31ded53 100644
--- a/sound/pci/emu10k1/emu10k1_main.c
+++ b/sound/pci/emu10k1/emu10k1_main.c
@@ -1272,12 +1272,6 @@ static int snd_emu10k1_free(struct snd_emu10k1 *emu)
release_firmware(emu->dock_fw);
if (emu->irq >= 0)
free_irq(emu->irq, emu);
- /* remove reserved page */
- if (emu->reserved_page) {
- snd_emu10k1_synth_free(emu,
- (struct snd_util_memblk *)emu->reserved_page);
- emu->reserved_page = NULL;
- }
snd_util_memhdr_free(emu->memhdr);
if (emu->silent_page.area)
snd_dma_free_pages(&emu->silent_page);
@@ -1993,11 +1987,6 @@ int snd_emu10k1_create(struct snd_card *card,
SPCS_GENERATIONSTATUS | 0x00001200 |
0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT;
- emu->reserved_page = (struct snd_emu10k1_memblk *)
- snd_emu10k1_synth_alloc(emu, 4096);
- if (emu->reserved_page)
- emu->reserved_page->map_locked = 1;
-
/* Clear silent pages and set up pointers */
memset(emu->silent_page.area, 0, PAGE_SIZE);
silent_page = emu->silent_page.addr << emu->address_mode;
diff --git a/sound/pci/emu10k1/memory.c b/sound/pci/emu10k1/memory.c
index 4f1f69be1865..eaa61024ac7f 100644
--- a/sound/pci/emu10k1/memory.c
+++ b/sound/pci/emu10k1/memory.c
@@ -102,7 +102,7 @@ static void emu10k1_memblk_init(struct snd_emu10k1_memblk *blk)
*/
static int search_empty_map_area(struct snd_emu10k1 *emu, int npages, struct list_head **nextp)
{
- int page = 0, found_page = -ENOMEM;
+ int page = 1, found_page = -ENOMEM;
int max_size = npages;
int size;
struct list_head *candidate = &emu->mapped_link_head;
@@ -147,6 +147,10 @@ static int map_memblk(struct snd_emu10k1 *emu, struct snd_emu10k1_memblk *blk)
page = search_empty_map_area(emu, blk->pages, &next);
if (page < 0) /* not found */
return page;
+ if (page == 0) {
+ dev_err(emu->card->dev, "trying to map zero (reserved) page\n");
+ return -EINVAL;
+ }
/* insert this block in the proper position of mapped list */
list_add_tail(&blk->mapped_link, next);
/* append this as a newest block in order list */
@@ -177,7 +181,7 @@ static int unmap_memblk(struct snd_emu10k1 *emu, struct snd_emu10k1_memblk *blk)
q = get_emu10k1_memblk(p, mapped_link);
start_page = q->mapped_page + q->pages;
} else
- start_page = 0;
+ start_page = 1;
if ((p = blk->mapped_link.next) != &emu->mapped_link_head) {
q = get_emu10k1_memblk(p, mapped_link);
end_page = q->mapped_page;