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authorLinus Torvalds <torvalds@linux-foundation.org>2012-09-24 16:13:49 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-09-24 16:13:49 -0700
commitbee2d97b2c4583c2471aa65ab9c189a0011f62b3 (patch)
tree74bcd6a17f3db312268b4ad25aa05a1912ff174f /drivers/block
parent979570e02981d4a8fc20b3cc8fd651856c98ee9d (diff)
parent5ce765a540f34d1e2005e1210f49f67fdf11e997 (diff)
downloadlinux-bee2d97b2c4583c2471aa65ab9c189a0011f62b3.tar.bz2
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
Pull two ceph fixes from Sage Weil: "The first fixes a leak in the rbd setup error path, and the second fixes a more serious problem with mismatched kmap/kunmap that surfaced after the recent refactoring work." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: libceph: only kunmap kmapped pages rbd: drop dev reference on error in rbd_open()
Diffstat (limited to 'drivers/block')
-rw-r--r--drivers/block/rbd.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 9917943a3572..54a55f03115d 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -246,13 +246,12 @@ static int rbd_open(struct block_device *bdev, fmode_t mode)
{
struct rbd_device *rbd_dev = bdev->bd_disk->private_data;
- rbd_get_dev(rbd_dev);
-
- set_device_ro(bdev, rbd_dev->read_only);
-
if ((mode & FMODE_WRITE) && rbd_dev->read_only)
return -EROFS;
+ rbd_get_dev(rbd_dev);
+ set_device_ro(bdev, rbd_dev->read_only);
+
return 0;
}