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| author |   Dongliang Mu <mudongliangabcd@gmail.com> | 2021-10-27 22:34:41 +0800 |
|---|---|---|
| committer |   Jan Kara <jack@suse.cz> | 2021-10-27 16:45:20 +0200 |
| commit | 81dedaf10c20959bdf5624f9783f408df26ba7a4 (patch) | |
| tree | cfbdbdeb6b1dd29432c0274cafe04c74cfc9b8a5 /fs/reiserfs/super.c | |
| parent | isofs: Fix out of bound access for corrupted isofs image (diff) | |
| download | linux-dev-81dedaf10c20959bdf5624f9783f408df26ba7a4.tar.xz linux-dev-81dedaf10c20959bdf5624f9783f408df26ba7a4.zip | |
fs: reiserfs: remove useless new_opts in reiserfs_remount
Since the commit c3d98ea08291 ("VFS: Don't use save/replace_mount_options
if not using generic_show_options") eliminates replace_mount_options
in reiserfs_remount, but does not handle the allocated new_opts,
it will cause memory leak in the reiserfs_remount.
Because new_opts is useless in reiserfs_mount, so we fix this bug by
removing the useless new_opts in reiserfs_remount.
Fixes: c3d98ea08291 ("VFS: Don't use save/replace_mount_options if not using generic_show_options")
Link: https://lore.kernel.org/r/20211027143445.4156459-1-mudongliangabcd@gmail.com
Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/reiserfs/super.c')
| -rw-r--r-- | fs/reiserfs/super.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c index 58481f8d63d5..f7b05c6b3dcf 100644 --- a/fs/reiserfs/super.c +++ b/fs/reiserfs/super.c @@ -1437,7 +1437,6 @@ 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; int err; char *qf_names[REISERFS_MAXQUOTAS]; unsigned int qfmt = 0; @@ -1445,10 +1444,6 @@ 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); @@ -1599,7 +1594,6 @@ out_ok_unlocked: out_err_unlock: reiserfs_write_unlock(s); out_err: - kfree(new_opts); return err; } |