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-rw-r--r--fs/cifs/cifs_dfs_ref.c12
-rw-r--r--fs/cifs/connect.c13
2 files changed, 19 insertions, 6 deletions
diff --git a/fs/cifs/cifs_dfs_ref.c b/fs/cifs/cifs_dfs_ref.c
index 3bb11be8b6a8..606912d8f2a8 100644
--- a/fs/cifs/cifs_dfs_ref.c
+++ b/fs/cifs/cifs_dfs_ref.c
@@ -55,7 +55,7 @@ void cifs_dfs_release_automount_timer(void)
* i.e. strips from UNC trailing path that is not part of share
* name and fixup missing '\' in the begining of DFS node refferal
* if neccessary.
- * Returns pointer to share name on success or NULL on error.
+ * Returns pointer to share name on success or ERR_PTR on error.
* Caller is responsible for freeing returned string.
*/
static char *cifs_get_share_name(const char *node_name)
@@ -68,7 +68,7 @@ static char *cifs_get_share_name(const char *node_name)
UNC = kmalloc(len+2 /*for term null and additional \ if it's missed */,
GFP_KERNEL);
if (!UNC)
- return NULL;
+ return ERR_PTR(-ENOMEM);
/* get share name and server name */
if (node_name[1] != '\\') {
@@ -87,7 +87,7 @@ static char *cifs_get_share_name(const char *node_name)
cERROR(1, ("%s: no server name end in node name: %s",
__func__, node_name));
kfree(UNC);
- return NULL;
+ return ERR_PTR(-EINVAL);
}
/* find sharename end */
@@ -133,6 +133,12 @@ char *cifs_compose_mount_options(const char *sb_mountdata,
return ERR_PTR(-EINVAL);
*devname = cifs_get_share_name(ref->node_name);
+ if (IS_ERR(*devname)) {
+ rc = PTR_ERR(*devname);
+ *devname = NULL;
+ goto compose_mount_options_err;
+ }
+
rc = dns_resolve_server_name_to_ip(*devname, &srvIP);
if (rc != 0) {
cERROR(1, ("%s: Failed to resolve server part of %s to IP: %d",
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index fc44d316d0bb..f2486889b7bb 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -2544,11 +2544,20 @@ remote_path_check:
if (mount_data != mount_data_global)
kfree(mount_data);
+
mount_data = cifs_compose_mount_options(
cifs_sb->mountdata, full_path + 1,
referrals, &fake_devname);
- kfree(fake_devname);
+
free_dfs_info_array(referrals, num_referrals);
+ kfree(fake_devname);
+ kfree(full_path);
+
+ if (IS_ERR(mount_data)) {
+ rc = PTR_ERR(mount_data);
+ mount_data = NULL;
+ goto mount_fail_check;
+ }
if (tcon)
cifs_put_tcon(tcon);
@@ -2556,8 +2565,6 @@ remote_path_check:
cifs_put_smb_ses(pSesInfo);
cleanup_volume_info(&volume_info);
- FreeXid(xid);
- kfree(full_path);
referral_walks_count++;
goto try_mount_again;
}