linux-kernel - [PATCH] dma-buf: Remove unnecessary kmalloc() cast

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Date: Sun, 30 Jun 2024 03:12:16 +0200
From: Thorsten Blum <thorsten.blum@...lux.com>
To: akpm@...ux-foundation.org,
	jack@...e.cz,
	surenb@...gle.com
Cc: linux-kernel@...r.kernel.org,
	Thorsten Blum <thorsten.blum@...lux.com>
Subject: [PATCH] dma-buf: Remove unnecessary kmalloc() cast

Casting the return value of kmalloc() is unnecessary and can be
removed. Remove it and fix the following Coccinelle/coccicheck warning
reported by alloc_cast.cocci:

  WARNING: casting value returned by memory allocation function to (struct dma_fence_chain *) is useless.

Compile-tested only.

Signed-off-by: Thorsten Blum <thorsten.blum@...lux.com>
---
 include/linux/dma-fence-chain.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/dma-fence-chain.h b/include/linux/dma-fence-chain.h
index ad9e2506c2f4..a9dc82e1b7f3 100644
--- a/include/linux/dma-fence-chain.h
+++ b/include/linux/dma-fence-chain.h
@@ -87,7 +87,7 @@ dma_fence_chain_contained(struct dma_fence *fence)
  * Returns a new struct dma_fence_chain object or NULL on failure.
  */
 #define dma_fence_chain_alloc()	\
-		((struct dma_fence_chain *)kmalloc(sizeof(struct dma_fence_chain), GFP_KERNEL))
+		kmalloc(sizeof(struct dma_fence_chain), GFP_KERNEL)
 
 /**
  * dma_fence_chain_free
-- 
2.39.2