tree 76650de85ba0c02a48de9daa1ba316b5108450f0
parent 79f1ba49569e5aec919b653c55b03274c2331701
author Lukas Czerner <lczerner@redhat.com> 1350943279 -0400
committer Theodore Ts'o <tytso@mit.edu> 1350943279 -0400

ext4: Avoid underflow in ext4_trim_fs()

Currently if len argument in ext4_trim_fs() is smaller than one block,
the 'end' variable underflow. Avoid that by returning EINVAL if len is
smaller than file system block.

Also remove useless unlikely().

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@vger.kernel.org