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| author | Jan Kara <jack@suse.cz> | 2014-10-29 14:50:44 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-11-14 09:00:08 -0800 |
| commit | 3e3fca71dd27993dff6591188c79ff26a3a55417 (patch) | |
| tree | ea69c6970e07551c46a27a0cbca0315af5eaefa4 /block | |
| parent | c65fabeffc5e5736465f89f1255c1953c9f60a9d (diff) | |
| download | lwn-3e3fca71dd27993dff6591188c79ff26a3a55417.tar.gz lwn-3e3fca71dd27993dff6591188c79ff26a3a55417.zip | |
lib/bitmap.c: fix undefined shift in __bitmap_shift_{left|right}()
commit ea5d05b34aca25c066e0699512d0ffbd8ee6ac3e upstream.
If __bitmap_shift_left() or __bitmap_shift_right() are asked to shift by
a multiple of BITS_PER_LONG, they will try to shift a long value by
BITS_PER_LONG bits which is undefined. Change the functions to avoid
the undefined shift.
Coverity id: 1192175
Coverity id: 1192174
Signed-off-by: Jan Kara <jack@suse.cz>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'block')
0 files changed, 0 insertions, 0 deletions