linux-kernel - [PATCH] drm/i915/opregion: Remove null check before kfree

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Message-Id: <1504099876-4142-1-git-send-email-himanshujha199640@gmail.com>
Date:   Wed, 30 Aug 2017 19:01:16 +0530
From:   Himanshu Jha <himanshujha199640@...il.com>
To:     jani.nikula@...ux.intel.com
Cc:     joonas.lahtinen@...ux.intel.com, rodrigo.vivi@...el.com,
        airlied@...ux.ie, intel-gfx@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Himanshu Jha <himanshujha199640@...il.com>
Subject: [PATCH] drm/i915/opregion: Remove null check before kfree

kfree on NULL pointer is a no-op and therefore checking is redundant.

Signed-off-by: Himanshu Jha <himanshujha199640@...il.com>
---
 drivers/gpu/drm/i915/intel_opregion.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_opregion.c b/drivers/gpu/drm/i915/intel_opregion.c
index 98154ef..2427b40 100644
--- a/drivers/gpu/drm/i915/intel_opregion.c
+++ b/drivers/gpu/drm/i915/intel_opregion.c
@@ -830,10 +830,8 @@ void intel_opregion_unregister(struct drm_i915_private *dev_priv)
 		memunmap(opregion->rvda);
 		opregion->rvda = NULL;
 	}
-	if (opregion->vbt_firmware) {
-		kfree(opregion->vbt_firmware);
-		opregion->vbt_firmware = NULL;
-	}
+	kfree(opregion->vbt_firmware);
+	opregion->vbt_firmware = NULL;
 	opregion->header = NULL;
 	opregion->acpi = NULL;
 	opregion->swsci = NULL;
-- 
2.7.4