Merge branch 'for-4.8/core' of git://git.kernel.dk/linux-block

[karo-tx-linux.git] / fs / reiserfs / super.c

diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index 9938a518c5ef3622b33e4d5912367b4968880038..7a4a85a6821e721f463257c1891c8279ad8ba1ad 100644 (file)
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -1393,7 +1393,7 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
        unsigned long safe_mask = 0;
        unsigned int commit_max_age = (unsigned int)-1;
        struct reiserfs_journal *journal = SB_JOURNAL(s);
-       char *new_opts = kstrdup(arg, GFP_KERNEL);
+       char *new_opts;
        int err;
        char *qf_names[REISERFS_MAXQUOTAS];
        unsigned int qfmt = 0;
@@ -1401,6 +1401,10 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
        int i;
 #endif
 
+       new_opts = kstrdup(arg, GFP_KERNEL);
+       if (arg && !new_opts)
+               return -ENOMEM;
+
        sync_filesystem(s);
        reiserfs_write_lock(s);
 
@@ -1546,7 +1550,8 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
        }
 
 out_ok_unlocked:
-       replace_mount_options(s, new_opts);
+       if (new_opts)
+               replace_mount_options(s, new_opts);
        return 0;
 
 out_err_unlock: