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authorIngo Molnar <mingo@kernel.org>2014-03-11 11:53:50 +0100
committerIngo Molnar <mingo@kernel.org>2014-03-11 11:53:50 +0100
commit0066f3b93e144762b409940fa37bb1cd36c1baf7 (patch)
tree0c99b2754fb16c2a787bc1d086bd6fb268b12b1a /drivers/md/dm-mpath.c
parente65312fe868da53077780de618e213a53dc90d00 (diff)
parentb8ad0f912b93c23c34dfedc615a0eeba6ca29463 (diff)
Merge branch 'perf/urgent' into perf/core
Merge the latest fixes. Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/md/dm-mpath.c')
-rw-r--r--drivers/md/dm-mpath.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index 6eb9dc9ef8f3..422a9fdeb53e 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -1626,8 +1626,11 @@ static int multipath_ioctl(struct dm_target *ti, unsigned int cmd,
/*
* Only pass ioctls through if the device sizes match exactly.
*/
- if (!r && ti->len != i_size_read(bdev->bd_inode) >> SECTOR_SHIFT)
- r = scsi_verify_blk_ioctl(NULL, cmd);
+ if (!bdev || ti->len != i_size_read(bdev->bd_inode) >> SECTOR_SHIFT) {
+ int err = scsi_verify_blk_ioctl(NULL, cmd);
+ if (err)
+ r = err;
+ }
if (r == -ENOTCONN && !fatal_signal_pending(current))
queue_work(kmultipathd, &m->process_queued_ios);