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| author | Kangjie Lu <kjlu@umn.edu> | 2018-12-20 23:54:03 -0500 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-03-19 16:47:20 -0400 |
| commit | 0ab34a08812a3334350dbaf69a018ee0ab3d2ddd (patch) | |
| tree | bc758e0bb675e0a991ed0ffcaea6e589d607000b /tools/perf/scripts/python/event_analyzing_sample.py | |
| parent | 56cd26b618855c9af48c8301aa6754ced8dd0beb (diff) | |
| download | cachepc-linux-0ab34a08812a3334350dbaf69a018ee0ab3d2ddd.tar.gz cachepc-linux-0ab34a08812a3334350dbaf69a018ee0ab3d2ddd.zip | |
media: si2165: fix a missing check of return value
si2165_readreg8() may fail. Looking into si2165_readreg8(), we will find
that "val_tmp" will be an uninitialized value when regmap_read() fails.
"val_tmp" is then assigned to "val". So if si2165_readreg8() fails,
"val" will be a random value. Further use will lead to undefined
behaviors. The fix checks if si2165_readreg8() fails, and if so, returns
its error code upstream.
Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Reviewed-by: Matthias Schwarzott <zzam@gentoo.org>
Tested-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/event_analyzing_sample.py')
0 files changed, 0 insertions, 0 deletions