cifs: have cifs_cleanup_volume_info not take a double pointer

...as that makes for a cumbersome interface. Make it take a regular
smb_vol pointer and rely on the caller to zero it out if needed.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Pavel Shilovsky <piastryyy@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>

3 files changed, 5 insertions, 9 deletions

diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 35f9154615fa..e11b83149833 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -713,7 +713,7 @@ cifs_do_mount(struct file_system_type *fs_type,
 out_super:
         deactivate_locked_super(sb);
 out:
-        cifs_cleanup_volume_info(&volume_info);
+        cifs_cleanup_volume_info(volume_info);
         return root;
 
 out_mountdata:
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index 257f312ede42..53b1b13581c6 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -154,7 +154,7 @@ extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *,
 extern void cifs_setup_cifs_sb(struct smb_vol *pvolume_info,
                                struct cifs_sb_info *cifs_sb);
 extern int cifs_match_super(struct super_block *, void *);
-extern void cifs_cleanup_volume_info(struct smb_vol **pvolume_info);
+extern void cifs_cleanup_volume_info(struct smb_vol *pvolume_info);
 extern int cifs_setup_volume_info(struct smb_vol **pvolume_info,
                                   char *mount_data, const char *devname);
 extern int cifs_mount(struct cifs_sb_info *, struct smb_vol *);
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 44376ce41e42..dd064075ddfb 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -2831,14 +2831,11 @@ is_path_accessible(int xid, struct cifs_tcon *tcon,
 }
 
 void
-cifs_cleanup_volume_info(struct smb_vol **pvolume_info)
+cifs_cleanup_volume_info(struct smb_vol *volume_info)
 {
-        struct smb_vol *volume_info;
-
-        if (!pvolume_info || !*pvolume_info)
+        if (!volume_info)
                 return;
 
-        volume_info = *pvolume_info;
         kfree(volume_info->username);
         kzfree(volume_info->password);
         kfree(volume_info->UNC);
@@ -2847,7 +2844,6 @@ cifs_cleanup_volume_info(struct smb_vol **pvolume_info)
         kfree(volume_info->iocharset);
         kfree(volume_info->prepath);
         kfree(volume_info);
-        *pvolume_info = NULL;
         return;
 }
 
@@ -2990,7 +2986,7 @@ int cifs_setup_volume_info(struct smb_vol **pvolume_info, char *mount_data,
         *pvolume_info = volume_info;
         return rc;
 out:
-        cifs_cleanup_volume_info(&volume_info);
+        cifs_cleanup_volume_info(volume_info);
         return rc;
 }