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path: root/drivers/block/pktcdvd.c
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Diffstat (limited to 'drivers/block/pktcdvd.c')
-rw-r--r--drivers/block/pktcdvd.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 40f1e31..b1cbeb5 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -2383,6 +2383,7 @@ static int pkt_open(struct block_device *bdev, fmode_t mode)
VPRINTK(DRIVER_NAME": entering open\n");
+ lock_kernel();
mutex_lock(&ctl_mutex);
pd = pkt_find_dev_from_minor(MINOR(bdev->bd_dev));
if (!pd) {
@@ -2410,6 +2411,7 @@ static int pkt_open(struct block_device *bdev, fmode_t mode)
}
mutex_unlock(&ctl_mutex);
+ unlock_kernel();
return 0;
out_dec:
@@ -2417,6 +2419,7 @@ out_dec:
out:
VPRINTK(DRIVER_NAME": failed open (%d)\n", ret);
mutex_unlock(&ctl_mutex);
+ unlock_kernel();
return ret;
}
@@ -2425,6 +2428,7 @@ static int pkt_close(struct gendisk *disk, fmode_t mode)
struct pktcdvd_device *pd = disk->private_data;
int ret = 0;
+ lock_kernel();
mutex_lock(&ctl_mutex);
pd->refcnt--;
BUG_ON(pd->refcnt < 0);
@@ -2433,6 +2437,7 @@ static int pkt_close(struct gendisk *disk, fmode_t mode)
pkt_release_dev(pd, flush);
}
mutex_unlock(&ctl_mutex);
+ unlock_kernel();
return ret;
}
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