[CIFS] Fix mem leak on dfs referral

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

1 files changed, 8 insertions, 2 deletions

diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 7e4c24491729..bc673c8c1e6b 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -211,7 +211,10 @@ try_again_CIFSSMBUnixQPathInfo:
         if (rc) {
                 if (rc == -EREMOTE && !is_dfs_referral) {
                         is_dfs_referral = true;
-                        full_path = search_path;
+                        if (full_path != search_path) {
+                                kfree(full_path);
+                                full_path = search_path;
+                        }
                         goto try_again_CIFSSMBUnixQPathInfo;
                 }
                 goto cgiiu_exit;
@@ -422,7 +425,10 @@ try_again_CIFSSMBQPathInfo:
         if (rc) {
                 if (rc == -EREMOTE && !is_dfs_referral) {
                         is_dfs_referral = true;
-                        full_path = search_path;
+                        if (full_path != search_path) {
+                                kfree(full_path);
+                                full_path = search_path;
+                        }
                         goto try_again_CIFSSMBQPathInfo;
                 }
                 goto cgii_exit;