diff options
Diffstat (limited to 'drivers/ide')
-rw-r--r-- | drivers/ide/ide-cd.c | 14 | ||||
-rw-r--r-- | drivers/ide/ide-gd.c | 17 | ||||
-rw-r--r-- | drivers/ide/ide-tape.c | 9 |
3 files changed, 33 insertions, 7 deletions
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index bf9f61a..5108e97 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -1591,17 +1591,19 @@ static struct ide_driver ide_cdrom_driver = { static int idecd_open(struct block_device *bdev, fmode_t mode) { - struct cdrom_info *info = ide_cd_get(bdev->bd_disk); - int rc = -ENOMEM; + struct cdrom_info *info; + int rc = -ENXIO; + lock_kernel(); + info = ide_cd_get(bdev->bd_disk); if (!info) - return -ENXIO; + goto out; rc = cdrom_open(&info->devinfo, bdev, mode); - if (rc < 0) ide_cd_put(info); - +out: + unlock_kernel(); return rc; } @@ -1609,9 +1611,11 @@ static int idecd_release(struct gendisk *disk, fmode_t mode) { struct cdrom_info *info = ide_drv_g(disk, cdrom_info); + lock_kernel(); cdrom_release(&info->devinfo, mode); ide_cd_put(info); + unlock_kernel(); return 0; } diff --git a/drivers/ide/ide-gd.c b/drivers/ide/ide-gd.c index 883f0c9..137337a 100644 --- a/drivers/ide/ide-gd.c +++ b/drivers/ide/ide-gd.c @@ -1,3 +1,4 @@ +#include <linux/smp_lock.h> #include <linux/module.h> #include <linux/types.h> #include <linux/string.h> @@ -237,6 +238,18 @@ out_put_idkp: return ret; } +static int ide_gd_unlocked_open(struct block_device *bdev, fmode_t mode) +{ + int ret; + + lock_kernel(); + ret = ide_gd_open(bdev, mode); + unlock_kernel(); + + return ret; +} + + static int ide_gd_release(struct gendisk *disk, fmode_t mode) { struct ide_disk_obj *idkp = ide_drv_g(disk, ide_disk_obj); @@ -244,6 +257,7 @@ static int ide_gd_release(struct gendisk *disk, fmode_t mode) ide_debug_log(IDE_DBG_FUNC, "enter"); + lock_kernel(); if (idkp->openers == 1) drive->disk_ops->flush(drive); @@ -255,6 +269,7 @@ static int ide_gd_release(struct gendisk *disk, fmode_t mode) idkp->openers--; ide_disk_put(idkp); + unlock_kernel(); return 0; } @@ -321,7 +336,7 @@ static int ide_gd_ioctl(struct block_device *bdev, fmode_t mode, static const struct block_device_operations ide_gd_ops = { .owner = THIS_MODULE, - .open = ide_gd_open, + .open = ide_gd_unlocked_open, .release = ide_gd_release, .ioctl = ide_gd_ioctl, .getgeo = ide_gd_getgeo, diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c index 39b0a5c..6d622cb 100644 --- a/drivers/ide/ide-tape.c +++ b/drivers/ide/ide-tape.c @@ -1907,7 +1907,11 @@ static const struct file_operations idetape_fops = { static int idetape_open(struct block_device *bdev, fmode_t mode) { - struct ide_tape_obj *tape = ide_tape_get(bdev->bd_disk, false, 0); + struct ide_tape_obj *tape; + + lock_kernel(); + tape = ide_tape_get(bdev->bd_disk, false, 0); + unlock_kernel(); if (!tape) return -ENXIO; @@ -1919,7 +1923,10 @@ static int idetape_release(struct gendisk *disk, fmode_t mode) { struct ide_tape_obj *tape = ide_drv_g(disk, ide_tape_obj); + lock_kernel(); ide_tape_put(tape); + unlock_kernel(); + return 0; } |