]> git.proxmox.com Git - mirror_ubuntu-focal-kernel.git/commitdiff
crypto: cavium/nitrox - Replace GFP_ATOMIC with GFP_KERNEL in crypto_alloc_context()
authorJia-Ju Bai <baijiaju1990@gmail.com>
Mon, 23 Jul 2018 08:14:26 +0000 (16:14 +0800)
committerHerbert Xu <herbert@gondor.apana.org.au>
Fri, 3 Aug 2018 10:05:49 +0000 (18:05 +0800)
crypto_alloc_context() is only called by nitrox_skcipher_init(), which is
never called in atomic context.

crypto_alloc_context() calls dma_pool_alloc() with GFP_ATOMIC,
which is not necessary.
GFP_ATOMIC can be replaced with GFP_KERNEL.

This is found by a static analysis tool named DCNS written by myself.
I also manually check the kernel code before reporting it.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
drivers/crypto/cavium/nitrox/nitrox_lib.c

index 4fdc921ba611b94b9a8d14e3a657a63497a4cce9..ebe267379ac95ede190832e8a9c0a1df174e6866 100644 (file)
@@ -148,7 +148,7 @@ void *crypto_alloc_context(struct nitrox_device *ndev)
        void *vaddr;
        dma_addr_t dma;
 
-       vaddr = dma_pool_alloc(ndev->ctx_pool, (GFP_ATOMIC | __GFP_ZERO), &dma);
+       vaddr = dma_pool_alloc(ndev->ctx_pool, (GFP_KERNEL | __GFP_ZERO), &dma);
        if (!vaddr)
                return NULL;