If kmalloc() returned NULL we would end up dereferencing "state" a couple lines later.
Signed-off-by: Dan Carpenter dan.carpenter@oracle.com
diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c index 8df0aaf..867069b 100644 --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c @@ -415,8 +415,9 @@ atmel_hlcdc_crtc_duplicate_state(struct drm_crtc *crtc) return NULL;
state = kmalloc(sizeof(*state), GFP_KERNEL); - if (state) - __drm_atomic_helper_crtc_duplicate_state(crtc, &state->base); + if (!state) + return NULL; + __drm_atomic_helper_crtc_duplicate_state(crtc, &state->base);
cur = drm_crtc_state_to_atmel_hlcdc_crtc_state(crtc->state); state->output_mode = cur->output_mode;