diff options
| author | Colin Ian King <colin.king@canonical.com> | 2019-07-23 15:23:12 +0100 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-07-30 23:18:53 -0500 |
| commit | 87abff77880da827b8c9acb37e241999183b406f (patch) | |
| tree | 2f122433a6cb29f501287d68c3519eafa653db04 /drivers/gpu/drm/amd/display/dc/core | |
| parent | 59d788b18771f5f0f198e8da3cd4f38dfbfa64ba (diff) | |
drm/amd/display: fix a missing null check on a failed kzalloc
Currently the allocation of config may fail and a null pointer
dereference on config can occur. Fix this by added a null
check on a failed allocation of config.
Addresses-Coverity: ("Dereference null return")
Fixes: c2cd9d04ecf0 ("drm/amd/display: Hook up calls to do stereo mux and dig programming to stereo control interface")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/core')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index 94f126d2331c..252b621d93a9 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -1259,6 +1259,8 @@ bool dc_set_generic_gpio_for_stereo(bool enable, struct gpio_generic_mux_config *config = kzalloc(sizeof(struct gpio_generic_mux_config), GFP_KERNEL); + if (!config) + return false; pin_info = dal_gpio_get_generic_pin_info(gpio_service, GPIO_ID_GENERIC, 0); if (pin_info.mask == 0xFFFFFFFF || pin_info.offset == 0xFFFFFFFF) { |