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| author | Gustavo A. R. Silva <[email protected]> | 2017-12-06 20:20:15 +0000 |
|---|---|---|
| committer | MyungJoo Ham <[email protected]> | 2018-01-02 00:36:54 +0000 |
| commit | 63f1e05f7fe9ca509c60154d6a833abf96eecdc9 (patch) | |
| tree | c7166465e745e3d073bf07b578bff73cd28394a8 /drivers/acpi/cppc_acpi.c | |
| parent | PM / devfreq: Propagate error from devfreq_add_device() (diff) | |
| download | kernel-63f1e05f7fe9ca509c60154d6a833abf96eecdc9.tar.gz kernel-63f1e05f7fe9ca509c60154d6a833abf96eecdc9.zip | |
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 <[email protected]>
Reviewed-by: Chanwoo Choi <[email protected]>
Signed-off-by: MyungJoo Ham <[email protected]>
Diffstat (limited to 'drivers/acpi/cppc_acpi.c')
0 files changed, 0 insertions, 0 deletions