[PATCH 1/1] DMA: Delete a check before free_percpu()

SF Markus Elfring
2014-12-01T05:12:21Z

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Mon, 1 Dec 2014 06:06:57 +0100

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>
---
drivers/dma/dmaengine.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index 24bfaf0..e057935 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;
--
2.1.3