From 616129cc6e75fb4da6681c16c981fa82dfe5e4c7 Mon Sep 17 00:00:00 2001
From: Christophe Jaillet <christophe.jaillet@wanadoo.fr>
Date: Sun, 8 Oct 2017 11:39:49 +0200
Subject: [PATCH] crypto: lrw - Fix an error handling path in 'create()'
Git-commit: 616129cc6e75fb4da6681c16c981fa82dfe5e4c7
Patch-mainline: v4.15-rc1
References: bsc#1051510

All error handling paths 'goto err_drop_spawn' except this one.
In order to avoid some resources leak, we should do it as well here.

Fixes: 700cb3f5fe75 ("crypto: lrw - Convert to skcipher")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 crypto/lrw.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

--- a/crypto/lrw.c
+++ b/crypto/lrw.c
@@ -610,8 +610,10 @@ static int create(struct crypto_template
 		ecb_name[len - 1] = 0;
 
 		if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME,
-			     "lrw(%s)", ecb_name) >= CRYPTO_MAX_ALG_NAME)
-			return -ENAMETOOLONG;
+			     "lrw(%s)", ecb_name) >= CRYPTO_MAX_ALG_NAME) {
+			err = -ENAMETOOLONG;
+			goto err_drop_spawn;
+		}
 	}
 
 	inst->alg.base.cra_flags = alg->base.cra_flags & CRYPTO_ALG_ASYNC;