[CRYPTO] hifn_795x: Fixup container_of() usage

Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/drivers/crypto/hifn_795x.c b/drivers/crypto/hifn_795x.c
index 1a19700..16413e5 100644
--- a/drivers/crypto/hifn_795x.c
+++ b/drivers/crypto/hifn_795x.c
@@ -664,7 +664,7 @@
 	atomic_t		sg_num;
 };
 
-#define crypto_alg_to_hifn(alg)	container_of(alg, struct hifn_crypto_alg, alg)
+#define crypto_alg_to_hifn(a)	container_of(a, struct hifn_crypto_alg, alg)
 
 static inline u32 hifn_read_0(struct hifn_device *dev, u32 reg)
 {