[1/3] ste_dma40: Delete an unnecessary check before the function call "kmem_cache_destroy"

Commit Message

SF Markus Elfring Nov. 16, 2015, 9:23 p.m. UTC

From: Markus Elfring <[e-mail]>
Date: Mon, 16 Nov 2015 20:26:27 +0100

The kmem_cache_destroy() 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 <[e-mail]>
---
 drivers/dma/ste_dma40.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

Comments

Linus Walleij Nov. 29, 2015, 9:26 p.m. UTC | #1

On Mon, Nov 16, 2015 at 10:23 PM, SF Markus Elfring
<[e-mail]> wrote:

> From: Markus Elfring <[e-mail]>
> Date: Mon, 16 Nov 2015 20:26:27 +0100
>
> The kmem_cache_destroy() 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 <[e-mail]>

Acked-by: Linus Walleij <[e-mail]>

Yours,
Linus Walleij
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Patch

diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index dd3e7ba..9132ae0 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -3694,8 +3694,7 @@  static int __init d40_probe(struct platform_device *pdev)
 
 failure:
 	if (base) {
-		if (base->desc_slab)
-			kmem_cache_destroy(base->desc_slab);
+		kmem_cache_destroy(base->desc_slab);
 		if (base->virtbase)
 			iounmap(base->virtbase);