[PATCH v3] drm/amd/display: Remove redundant NULL check before kfree() in mod_power_create()

[Ziran Zhang]

kfree() safely handles NULL pointers, so there is no need to check for
NULL before calling kfree().

Remove redundant NULL check.

Found by Coccinelle ifnullfree script.

Signed-off-by: Ziran Zhang <zhangcoder@xxxxxxxx>
---

Changes in v3:
- Add parentheses to "kfree" in subject line for consistency.

 .../gpu/drm/amd/display/modules/power/power.c    | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/modules/power/power.c b/drivers/gpu/drm/amd/display/modules/power/power.c
index 5659a38b3..97889867a 100644
--- a/drivers/gpu/drm/amd/display/modules/power/power.c
+++ b/drivers/gpu/drm/amd/display/modules/power/power.c
@@ -270,13 +270,11 @@ struct mod_power *mod_power_create(struct dc *dc,
 fail_bad_brightness_range:
 fail_alloc_backlight_array:
 	for (inst = 0; inst < edp_num; inst++)
-		if (core_power->bl_prop[inst].backlight_lut)
-			kfree(core_power->bl_prop[inst].backlight_lut);
+		kfree(core_power->bl_prop[inst].backlight_lut);
 fail_construct:
-	for (i = 0; i < MOD_POWER_MAX_CONCURRENT_STREAMS; i++) {
-		if (core_power->map[i].psr_context)
-			kfree(core_power->map[i].psr_context);
-	}
+	for (i = 0; i < MOD_POWER_MAX_CONCURRENT_STREAMS; i++)
+		kfree(core_power->map[i].psr_context);
+
 	kfree(core_power->map);
 
 fail_alloc_map:
@@ -295,8 +293,7 @@ void mod_power_destroy(struct mod_power *mod_power)
 				MOD_POWER_TO_CORE(mod_power);
 
 		for (i = 0; i < MOD_POWER_MAX_CONCURRENT_STREAMS; i++)
-			if (core_power->map[i].psr_context)
-				kfree(core_power->map[i].psr_context);
+			kfree(core_power->map[i].psr_context);
 
 		for (i = 0; i < core_power->num_entities; i++)
 			if (core_power->map[i].stream)
@@ -305,8 +302,7 @@ void mod_power_destroy(struct mod_power *mod_power)
 		kfree(core_power->map);
 
 		for (i = 0; i < MAX_NUM_EDP; i++)
-			if (core_power->bl_prop[i].backlight_lut)
-				kfree(core_power->bl_prop[i].backlight_lut);
+			kfree(core_power->bl_prop[i].backlight_lut);
 
 		kfree(core_power);
 	}
-- 
2.43.0