diff options
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/sd.c | 5 | ||||
| -rw-r--r-- | drivers/scsi/sr.c | 7 |
2 files changed, 11 insertions, 1 deletions
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 633ac32b25c1..01680c7c8507 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -795,6 +795,7 @@ static int sd_open(struct block_device *bdev, fmode_t mode) SCSI_LOG_HLQUEUE(3, sd_printk(KERN_INFO, sdkp, "sd_open\n")); + lock_kernel(); sdev = sdkp->device; /* @@ -838,10 +839,12 @@ static int sd_open(struct block_device *bdev, fmode_t mode) scsi_set_medium_removal(sdev, SCSI_REMOVAL_PREVENT); } + unlock_kernel(); return 0; error_out: scsi_disk_put(sdkp); + unlock_kernel(); return retval; } @@ -863,6 +866,7 @@ static int sd_release(struct gendisk *disk, fmode_t mode) SCSI_LOG_HLQUEUE(3, sd_printk(KERN_INFO, sdkp, "sd_release\n")); + lock_kernel(); if (!--sdkp->openers && sdev->removable) { if (scsi_block_when_processing_errors(sdev)) scsi_set_medium_removal(sdev, SCSI_REMOVAL_ALLOW); @@ -873,6 +877,7 @@ static int sd_release(struct gendisk *disk, fmode_t mode) * XXX is followed by a "rmmod sd_mod"? */ scsi_disk_put(sdkp); + unlock_kernel(); return 0; } diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c index d42fa6468f41..ba9c3e0387ce 100644 --- a/drivers/scsi/sr.c +++ b/drivers/scsi/sr.c @@ -467,22 +467,27 @@ static int sr_prep_fn(struct request_queue *q, struct request *rq) static int sr_block_open(struct block_device *bdev, fmode_t mode) { - struct scsi_cd *cd = scsi_cd_get(bdev->bd_disk); + struct scsi_cd *cd; int ret = -ENXIO; + lock_kernel(); + cd = scsi_cd_get(bdev->bd_disk); if (cd) { ret = cdrom_open(&cd->cdi, bdev, mode); if (ret) scsi_cd_put(cd); } + unlock_kernel(); return ret; } static int sr_block_release(struct gendisk *disk, fmode_t mode) { struct scsi_cd *cd = scsi_cd(disk); + lock_kernel(); cdrom_release(&cd->cdi, mode); scsi_cd_put(cd); + unlock_kernel(); return 0; } |