dm ioctl: use uninitialized_var

drivers/md/dm-ioctl.c:1405: warning: 'param' may be used uninitialized in this function

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
index 9c491397a51d..b262c0042de3 100644
--- a/drivers/md/dm-ioctl.c
+++ b/drivers/md/dm-ioctl.c
@@ -1402,7 +1402,7 @@ static int ctl_ioctl(uint command, struct dm_ioctl __user *user)
 {
         int r = 0;
         unsigned int cmd;
-        struct dm_ioctl *param;
+        struct dm_ioctl *uninitialized_var(param);
         ioctl_fn fn = NULL;
         size_t param_size;