From: Syam Sidhardhan <syamsidhardh@gmail.com>
Date: Sun, 24 Feb 2013 23:16:26 +0000 (+0530)
Subject: dma: imx-dma: Remove redundant NULL check before kfree
X-Git-Tag: upstream/snapshot3+hdmi~5139^2~29
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=96a3713ebcf71ef94c3680422ee060a04c5bc365;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

dma: imx-dma: Remove redundant NULL check before kfree

kfree on NULL pointer is a no-op.

Signed-off-by: Syam Sidhardhan <s.syam@samsung.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---

diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c
index 7d08ab7..f285833 100644
--- a/drivers/dma/imx-dma.c
+++ b/drivers/dma/imx-dma.c
@@ -859,8 +859,7 @@ static struct dma_async_tx_descriptor *imxdma_prep_dma_cyclic(
 
 	desc = list_first_entry(&imxdmac->ld_free, struct imxdma_desc, node);
 
-	if (imxdmac->sg_list)
-		kfree(imxdmac->sg_list);
+	kfree(imxdmac->sg_list);
 
 	imxdmac->sg_list = kcalloc(periods + 1,
 			sizeof(struct scatterlist), GFP_KERNEL);