crypto: img-hash - Use unregister_ahashes in img_{un}register_algs

Replace the for loops with calls to crypto_unregister_ahashes(). In
img_register_algs(), return 'err' immediately and remove the goto
statement to simplify the error handling code.

Convert img_unregister_algs() to a void function since its return value
is never used.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Author: toblux

drivers/crypto/img-hash.c

@@ -870,25 +870,18 @@ static int img_register_algs(struct img_hash_dev *hdev)
 
 	for (i = 0; i < ARRAY_SIZE(img_algs); i++) {
 		err = crypto_register_ahash(&img_algs[i]);
-		if (err)
-			goto err_reg;
+		if (err) {
+			crypto_unregister_ahashes(img_algs, i);
+			return err;
+		}
 	}
-	return 0;
 
-err_reg:
-	for (; i--; )
-		crypto_unregister_ahash(&img_algs[i]);
-
-	return err;
+	return 0;
 }
 
-static int img_unregister_algs(struct img_hash_dev *hdev)
+static void img_unregister_algs(struct img_hash_dev *hdev)
 {
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(img_algs); i++)
-		crypto_unregister_ahash(&img_algs[i]);
-	return 0;
+	crypto_unregister_ahashes(img_algs, ARRAY_SIZE(img_algs));
 }
 
 static void img_hash_done_task(unsigned long data)