[PATCH] X.509: fix error return value on the failed path

[Tianjia Zhang]

When memory allocation fails, an appropriate return value
should be set.

Fixes: 215525639631 ("X.509: support OSCCA SM2-with-SM3 certificate 
verification")
Signed-off-by: Tianjia Zhang <tianjia.zh...@linux.alibaba.com>
---
 crypto/asymmetric_keys/public_key_sm2.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/crypto/asymmetric_keys/public_key_sm2.c 
b/crypto/asymmetric_keys/public_key_sm2.c
index 7325cf21dbb4..66b614e1eccd 100644
--- a/crypto/asymmetric_keys/public_key_sm2.c
+++ b/crypto/asymmetric_keys/public_key_sm2.c
@@ -36,8 +36,10 @@ int cert_sig_digest_update(const struct public_key_signature 
*sig,
 
        desc_size = crypto_shash_descsize(tfm) + sizeof(*desc);
        desc = kzalloc(desc_size, GFP_KERNEL);
-       if (!desc)
+       if (!desc) {
+               ret = -ENOMEM;
                goto error_free_tfm;
+       }
 
        desc->tfm = tfm;
 
-- 
2.24.3 (Apple Git-128)