]> git.kernelconcepts.de Git - karo-tx-linux.git/commit
projects / karo-tx-linux.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 4319fd0) | patch
ext4: Avoid underflow in ext4_trim_fs()
authorLukas Czerner <lczerner@redhat.com>
Mon, 22 Oct 2012 22:01:19 +0000 (18:01 -0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 28 Oct 2012 17:14:12 +0000 (10:14 -0700)
commit2807664df50419f56b596aa49da8a22102c0e0a3
tree10093e02bec717aec954d34265189fcb067b2828tree | snapshot
parent4319fd00002630a761fa5559a086f11ed7623006commit | diff
ext4: Avoid underflow in ext4_trim_fs()

commit 5de35e8d5c02d271c20e18337e01bc20e6ef472e upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
fs/ext4/mballoc.c diff | blob | history
Linux kernel for KaRo TX COM modules