From: Markus Elfring <elfring@users.sourceforge.net>
Date: Mon, 1 Dec 2014 05:06:57 +0000 (+0100)
Subject: dmaenegine: Delete a check before free_percpu()
X-Git-Tag: v3.19-rc1~100^2
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=a9507ca3fb90987db5c6cc385885782cb05d4967;p=linux-2.6-block.git

dmaenegine: Delete a check before free_percpu()

The free_percpu() 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>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---

diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index 24bfaf0b92ba..e057935e3023 100644
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -330,8 +330,7 @@ static int __init dma_channel_table_init(void)
 	if (err) {
 		pr_err("initialization failure\n");
 		for_each_dma_cap_mask(cap, dma_cap_mask_all)
-			if (channel_table[cap])
-				free_percpu(channel_table[cap]);
+			free_percpu(channel_table[cap]);
 	}
 
 	return err;