ubifs bad superblock bug

[u-boot] / fs / ubifs / super.c

diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index 63b2164d30484072a1ff010ea046acf38d9d020f..26b48f029e76a032e0c3deb1445d34d1d921c4f5 100644 (file)
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -848,8 +848,10 @@ void ubifs_umount(struct ubifs_info *c)
        ubifs_debugging_exit(c);
 
        /* Finally free U-Boot's global copy of superblock */
-       free(ubifs_sb->s_fs_info);
-       free(ubifs_sb);
+       if (ubifs_sb != NULL) {
+               free(ubifs_sb->s_fs_info);
+               free(ubifs_sb);
+       }
 }
 
 /**