From: Markus Elfring elfring@users.sourceforge.net Date: Fri, 22 Jul 2016 08:28:31 +0200
The following functions test whether their argument is NULL and then return immediately. * backlight_device_unregister * drm_gem_object_unreference_unlocked
Thus the test around the calls is not needed.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring elfring@users.sourceforge.net --- drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c | 3 +-- drivers/gpu/drm/omapdrm/omap_fb.c | 4 ++-- 2 files changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c b/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c index 1b0cf2d..0eae8af 100644 --- a/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c +++ b/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c @@ -1284,8 +1284,7 @@ static int dsicm_probe(struct platform_device *pdev) return 0;
err_sysfs_create: - if (bldev != NULL) - backlight_device_unregister(bldev); + backlight_device_unregister(bldev); err_bl: destroy_workqueue(ddata->workqueue); err_reg: diff --git a/drivers/gpu/drm/omapdrm/omap_fb.c b/drivers/gpu/drm/omapdrm/omap_fb.c index 983c8cf..31f5178 100644 --- a/drivers/gpu/drm/omapdrm/omap_fb.c +++ b/drivers/gpu/drm/omapdrm/omap_fb.c @@ -115,8 +115,8 @@ static void omap_framebuffer_destroy(struct drm_framebuffer *fb)
for (i = 0; i < n; i++) { struct plane *plane = &omap_fb->planes[i]; - if (plane->bo) - drm_gem_object_unreference_unlocked(plane->bo); + + drm_gem_object_unreference_unlocked(plane->bo); }
kfree(omap_fb);