diff options
| author | Takashi Iwai <tiwai@suse.de> | 2017-08-22 08:15:13 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-08-30 10:19:22 +0200 |
| commit | 099e57fcb03fb46ec707c9627ebc5e8b6f1ffcdc (patch) | |
| tree | 7efc858b827fad4670fa7929c72fb3cf3d648d5f /tools/perf/scripts/python | |
| parent | 07051c1754775c95306ef75730efbaa321a97523 (diff) | |
ALSA: core: Fix unexpected error at replacing user TLV
commit 88c54cdf61f508ebcf8da2d819f5dfc03e954d1d upstream.
When user tries to replace the user-defined control TLV, the kernel
checks the change of its content via memcmp(). The problem is that
the kernel passes the return value from memcmp() as is. memcmp()
gives a non-zero negative value depending on the comparison result,
and this shall be recognized as an error code.
The patch covers that corner-case, return 1 properly for the changed
TLV.
Fixes: 8aa9b586e420 ("[ALSA] Control API - more robust TLV implementation")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions