btrfs: return early from failed memory allocations in ioctl handlers
authorShailendra Verma <shailendra.v@samsung.com>
Thu, 10 Nov 2016 09:47:41 +0000 (15:17 +0530)
committerDavid Sterba <dsterba@suse.com>
Wed, 30 Nov 2016 12:45:18 +0000 (13:45 +0100)
commit7b9ea6279b337455268fa41c1ddec22f1cb44e8f
tree031881988f2df5ae168ae4de777fe51688da2d7f
parent58e8012cc12b3cdebea118981c4fd7136d52f2c7
btrfs: return early from failed memory allocations in ioctl handlers

There is no need to call kfree() if memdup_user() fails, as no memory
was allocated and the error in the error-valued pointer should be returned.

Signed-off-by: Shailendra Verma <shailendra.v@samsung.com>
[ edit subject ]
Signed-off-by: David Sterba <dsterba@suse.com>
fs/btrfs/ioctl.c