Fix possible access to undefined memory region.

Signed-off-by: Igor Mammedov <niallain@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>

1 files changed, 5 insertions, 4 deletions

diff --git a/fs/cifs/dns_resolve.c b/fs/cifs/dns_resolve.c
index 939e256f8497..f730ef35499e 100644
--- a/fs/cifs/dns_resolve.c
+++ b/fs/cifs/dns_resolve.c
@@ -134,10 +134,6 @@ dns_resolve_server_name_to_ip(const char *unc, char **ip_addr)
         rkey = request_key(&key_type_dns_resolver, name, "");
         if (!IS_ERR(rkey)) {
                 data = rkey->payload.data;
-                cFYI(1, ("%s: resolved: %s to %s", __func__,
-                                        rkey->description,
-                                        *ip_addr
-                                ));
         } else {
                 cERROR(1, ("%s: unable to resolve: %s", __func__, name));
                 goto out;
@@ -150,6 +146,11 @@ skip_upcall:
                 if (*ip_addr) {
                         memcpy(*ip_addr, data, len);
                         (*ip_addr)[len] = '\0';
+                        if (!IS_ERR(rkey))
+                                cFYI(1, ("%s: resolved: %s to %s", __func__,
+                                                        name,
+                                                        *ip_addr
+                                        ));
                         rc = 0;
                 } else {
                         rc = -ENOMEM;