Messages in this thread Patch in this message | | | Date | Mon, 01 Dec 2014 06:12:21 +0100 | From | SF Markus Elfring <> | Subject | [PATCH 1/1] DMA: Delete a check before free_percpu() |
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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
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