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| author | Gustavo A. R. Silva <garsilva@embeddedor.com> | 2017-12-06 14:20:15 -0600 |
|---|---|---|
| committer | MyungJoo Ham <myungjoo.ham@samsung.com> | 2018-01-02 09:36:54 +0900 |
| commit | 63f1e05f7fe9ca509c60154d6a833abf96eecdc9 (patch) | |
| tree | c7166465e745e3d073bf07b578bff73cd28394a8 /mm/gup.c | |
| parent | d1bf2d30728f310f72296b54f0651ecdb09cbb12 (diff) | |
| download | linux-63f1e05f7fe9ca509c60154d6a833abf96eecdc9.tar.bz2 | |
PM / devfreq: Fix potential NULL pointer dereference in governor_store
df->governor is being dereferenced before it is null checked,
hence there is a potential null pointer dereference.
Notice that df->governor is being null checked at line 1004:
if (df->governor) {, which implies it might be null.
Fix this by null checking df->governor before dereferencing it.
Addresses-Coverity-ID: 1401988 ("Dereference before null check")
Fixes: bcf23c79c4e4 ("PM / devfreq: Fix available_governor sysfs")
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Diffstat (limited to 'mm/gup.c')
0 files changed, 0 insertions, 0 deletions