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[PATCH] GPU-DRM-i915: Delete an unnecessary check before the function call "pwm_put"

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  [PATCH] GPU-DRM-i915: Delete an unnecessary check before the function  call "pwm_put" SF Markus Elfring <elfring@users.sourceforge.net> - 2015-11-06 13:50 +0100

#1263991 — [PATCH] GPU-DRM-i915: Delete an unnecessary check before the function call "pwm_put"

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Fri, 6 Nov 2015 13:38:22 +0100

The pwm_put() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 drivers/gpu/drm/i915/intel_panel.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
index a24df35..3d8d913 100644
--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -1729,8 +1729,7 @@ void intel_panel_destroy_backlight(struct drm_connector *connector)
 	struct intel_panel *panel = &intel_connector->panel;
 
 	/* dispose of the pwm */
-	if (panel->backlight.pwm)
-		pwm_put(panel->backlight.pwm);
+	pwm_put(panel->backlight.pwm);
 
 	panel->backlight.present = false;
 }
-- 
2.6.2

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