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GPU-DRM: Delete unnecessary checks before drm_property_unreference_blob()

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The drm_property_unreference_blob() function tests whether its argument
is NULL and then returns immediately.
Thus the tests around the calls are not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Link: http://patchwork.freedesktop.org/patch/msgid/563C8B3E.405@users.sourceforge.net
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Markus Elfring 2015-11-06 12:03:46 +01:00 committed by Daniel Vetter
parent 36af4ca704
commit 5f91190505
2 changed files with 5 additions and 9 deletions
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9
drivers/gpu/drm/drm_atomic.c
View File

@ -316,8 +316,7 @@ int drm_atomic_set_mode_for_crtc(struct drm_crtc_state *state,
if (mode && memcmp(&state->mode, mode, sizeof(*mode)) == 0)
return 0;
if (state->mode_blob)
drm_property_unreference_blob(state->mode_blob);
drm_property_unreference_blob(state->mode_blob);
state->mode_blob = NULL;
if (mode) {
@ -363,8 +362,7 @@ int drm_atomic_set_mode_prop_for_crtc(struct drm_crtc_state *state,
if (blob == state->mode_blob)
return 0;
if (state->mode_blob)
drm_property_unreference_blob(state->mode_blob);
drm_property_unreference_blob(state->mode_blob);
state->mode_blob = NULL;
if (blob) {
@ -419,8 +417,7 @@ int drm_atomic_crtc_set_property(struct drm_crtc *crtc,
struct drm_property_blob *mode =
drm_property_lookup_blob(dev, val);
ret = drm_atomic_set_mode_prop_for_crtc(state, mode);
if (mode)
drm_property_unreference_blob(mode);
drm_property_unreference_blob(mode);
return ret;
}
else if (crtc->funcs->atomic_set_property)

5
drivers/gpu/drm/drm_atomic_helper.c
View File

@ -2184,7 +2184,7 @@ EXPORT_SYMBOL(drm_atomic_helper_connector_dpms);
*/
void drm_atomic_helper_crtc_reset(struct drm_crtc *crtc)
{
if (crtc->state && crtc->state->mode_blob)
if (crtc->state)
drm_property_unreference_blob(crtc->state->mode_blob);
kfree(crtc->state);
crtc->state = kzalloc(sizeof(*crtc->state), GFP_KERNEL);
@ -2252,8 +2252,7 @@ EXPORT_SYMBOL(drm_atomic_helper_crtc_duplicate_state);
void __drm_atomic_helper_crtc_destroy_state(struct drm_crtc *crtc,
struct drm_crtc_state *state)
{
if (state->mode_blob)
drm_property_unreference_blob(state->mode_blob);
drm_property_unreference_blob(state->mode_blob);
}
EXPORT_SYMBOL(__drm_atomic_helper_crtc_destroy_state);