[PATCH 2/2] crypto: bcm: One function call less in do_shash() after error detection

[SF Markus Elfring <elfring@users.sourceforge.net>]

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Wed, 14 Feb 2018 22:22:20 +0100

The kfree() function was called in one case by the do_shash() function
during error handling even if the passed variable contained a null pointer.

* Reorder two function calls at the end.

* Add a jump target.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 drivers/crypto/bcm/util.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/crypto/bcm/util.c b/drivers/crypto/bcm/util.c
index a912c6ad3e85..c141a0242223 100644
--- a/drivers/crypto/bcm/util.c
+++ b/drivers/crypto/bcm/util.c
@@ -279,7 +279,7 @@ int do_shash(unsigned char *name, unsigned char *result,
 	sdesc = kmalloc(size, GFP_KERNEL);
 	if (!sdesc) {
 		rc = -ENOMEM;
-		goto do_shash_err;
+		goto free_shash;
 	}
 	sdesc->shash.tfm = hash;
 	sdesc->shash.flags = 0x0;
@@ -314,9 +314,9 @@ int do_shash(unsigned char *name, unsigned char *result,
 		pr_err("%s: Could not generate %s hash\n", __func__, name);
 
 do_shash_err:
-	crypto_free_shash(hash);
 	kfree(sdesc);
-
+free_shash:
+	crypto_free_shash(hash);
 	return rc;
 }
 
-- 
2.16.1