nfc: s3fwrn5: use crypto_shash_tfm_digest()

Instead of manually allocating a 'struct shash_desc' on the stack and calling crypto_shash_digest(), switch to using the new helper function crypto_shash_tfm_digest() which does this for us. Cc: Robert Baldyga <[email protected]> Cc: Krzysztof Opasiak <[email protected]> Signed-off-by: Eric Biggers <[email protected]> Signed-off-by: Herbert Xu <[email protected]>
josf · May 8, 2020 · 96a5aa7 · 96a5aa7
1 parent ecca1ad
commit 96a5aa7
Showing 1 changed file with 1 addition and 9 deletions.
diff --git a/drivers/nfc/s3fwrn5/firmware.c b/drivers/nfc/s3fwrn5/firmware.c
@@ -434,15 +434,7 @@ int s3fwrn5_fw_download(struct s3fwrn5_fw_info *fw_info)
 		goto out;
 	}
 
-	{
-		SHASH_DESC_ON_STACK(desc, tfm);
-
-		desc->tfm = tfm;
-
-		ret = crypto_shash_digest(desc, fw->image, image_size,
-					  hash_data);
-		shash_desc_zero(desc);
-	}
+	ret = crypto_shash_tfm_digest(tfm, fw->image, image_size, hash_data);
 
 	crypto_free_shash(tfm);
 	if (ret) {