linux-kernel - [PATCH 1/1] iommu/fsl_pamu: Remove unnecessary null test before kfree

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Message-Id: <1404028886-5060-1-git-send-email-fabf@skynet.be>
Date:	Sun, 29 Jun 2014 10:01:26 +0200
From:	Fabian Frederick <fabf@...net.be>
To:	linux-kernel@...r.kernel.org
Cc:	Fabian Frederick <fabf@...net.be>, Joerg Roedel <joro@...tes.org>,
	Grant Likely <grant.likely@...aro.org>,
	iommu@...ts.linux-foundation.org, devicetree@...r.kernel.org
Subject: [PATCH 1/1] iommu/fsl_pamu: Remove unnecessary null test before kfree

Fix checkpatch warning:
WARNING: kfree(NULL) is safe this check is probably not required

Cc: Joerg Roedel <joro@...tes.org>
Cc: Grant Likely <grant.likely@...aro.org>
Cc: iommu@...ts.linux-foundation.org
Cc: devicetree@...r.kernel.org
Signed-off-by: Fabian Frederick <fabf@...net.be>
---
 drivers/iommu/fsl_pamu_domain.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/iommu/fsl_pamu_domain.c b/drivers/iommu/fsl_pamu_domain.c
index 93072ba..0009dff 100644
--- a/drivers/iommu/fsl_pamu_domain.c
+++ b/drivers/iommu/fsl_pamu_domain.c
@@ -1118,8 +1118,7 @@ static int fsl_pamu_set_windows(struct iommu_domain *domain, u32 w_count)
 	ret = pamu_set_domain_geometry(dma_domain, &domain->geometry,
 				((w_count > 1) ? w_count : 0));
 	if (!ret) {
-		if (dma_domain->win_arr)
-			kfree(dma_domain->win_arr);
+		kfree(dma_domain->win_arr);
 		dma_domain->win_arr = kzalloc(sizeof(struct dma_window) *
 							  w_count, GFP_ATOMIC);
 		if (!dma_domain->win_arr) {
-- 
1.8.4.5

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