diff options
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/mpt3sas/mpt3sas_scsih.c | 4 | ||||
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_os.c | 2 | ||||
| -rw-r--r-- | drivers/scsi/scsi_scan.c | 11 | ||||
| -rw-r--r-- | drivers/scsi/sd.c | 39 |
4 files changed, 46 insertions, 10 deletions
diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c index c3c1f466fe01..605013d3ee83 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c +++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c @@ -12913,8 +12913,10 @@ _mpt3sas_init(void) mpt3sas_ctl_init(hbas_to_enumerate); error = pci_register_driver(&mpt3sas_driver); - if (error) + if (error) { + mpt3sas_ctl_exit(hbas_to_enumerate); scsih_exit(); + } return error; } diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 50db08265c51..dcae09a37d49 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -4953,7 +4953,7 @@ qla2x00_mem_free(struct qla_hw_data *ha) ha->gid_list = NULL; ha->gid_list_dma = 0; - if (!list_empty(&ha->base_qpair->dsd_list)) { + if (ha->base_qpair && !list_empty(&ha->base_qpair->dsd_list)) { struct dsd_dma *dsd_ptr, *tdsd_ptr; /* clean up allocated prev pool */ diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index 902655d75947..44680f65ea14 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -1627,12 +1627,13 @@ int scsi_rescan_device(struct scsi_device *sdev) device_lock(dev); /* - * Bail out if the device is not running. Otherwise, the rescan may - * block waiting for commands to be executed, with us holding the - * device lock. This can result in a potential deadlock in the power - * management core code when system resume is on-going. + * Bail out if the device or its queue are not running. Otherwise, + * the rescan may block waiting for commands to be executed, with us + * holding the device lock. This can result in a potential deadlock + * in the power management core code when system resume is on-going. */ - if (sdev->sdev_state != SDEV_RUNNING) { + if (sdev->sdev_state != SDEV_RUNNING || + blk_queue_pm_only(sdev->request_queue)) { ret = -EWOULDBLOCK; goto unlock; } diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 83b6a3f3863b..6effa13039f3 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -209,7 +209,8 @@ manage_start_stop_show(struct device *dev, return sysfs_emit(buf, "%u\n", sdp->manage_system_start_stop && - sdp->manage_runtime_start_stop); + sdp->manage_runtime_start_stop && + sdp->manage_shutdown); } static DEVICE_ATTR_RO(manage_start_stop); @@ -275,6 +276,35 @@ manage_runtime_start_stop_store(struct device *dev, } static DEVICE_ATTR_RW(manage_runtime_start_stop); +static ssize_t manage_shutdown_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct scsi_disk *sdkp = to_scsi_disk(dev); + struct scsi_device *sdp = sdkp->device; + + return sysfs_emit(buf, "%u\n", sdp->manage_shutdown); +} + +static ssize_t manage_shutdown_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct scsi_disk *sdkp = to_scsi_disk(dev); + struct scsi_device *sdp = sdkp->device; + bool v; + + if (!capable(CAP_SYS_ADMIN)) + return -EACCES; + + if (kstrtobool(buf, &v)) + return -EINVAL; + + sdp->manage_shutdown = v; + + return count; +} +static DEVICE_ATTR_RW(manage_shutdown); + static ssize_t allow_restart_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -607,6 +637,7 @@ static struct attribute *sd_disk_attrs[] = { &dev_attr_manage_start_stop.attr, &dev_attr_manage_system_start_stop.attr, &dev_attr_manage_runtime_start_stop.attr, + &dev_attr_manage_shutdown.attr, &dev_attr_protection_type.attr, &dev_attr_protection_mode.attr, &dev_attr_app_tag_own.attr, @@ -3819,8 +3850,10 @@ static void sd_shutdown(struct device *dev) sd_sync_cache(sdkp, NULL); } - if (system_state != SYSTEM_RESTART && - sdkp->device->manage_system_start_stop) { + if ((system_state != SYSTEM_RESTART && + sdkp->device->manage_system_start_stop) || + (system_state == SYSTEM_POWER_OFF && + sdkp->device->manage_shutdown)) { sd_printk(KERN_NOTICE, sdkp, "Stopping disk\n"); sd_start_stop_device(sdkp, 0); } |