diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2011-06-17 15:17:28 +0200 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2011-06-25 00:39:41 +0200 |
| commit | 5d3bc605cafe3f367b1c43b673bf643245c81626 (patch) | |
| tree | e85fb1ad187627a0722dd0b18fe435b43c81ba33 /fs | |
| parent | cifs: leak on mount if we share superblock (diff) | |
| download | linux-5d3bc605cafe3f367b1c43b673bf643245c81626.tar.xz linux-5d3bc605cafe3f367b1c43b673bf643245c81626.zip | |
cifs: allocate mountdata earlier
pull mountdata allocation up, so that it won't stand in the way when
we lift cifs_mount() to location before sget().
Acked-by: Pavel Shilovsky <piastryyy@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/cifs/cifsfs.c | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index 4162ee45d043..ec19161dd278 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -687,6 +687,14 @@ cifs_do_mount(struct file_system_type *fs_type, goto out; } + cifs_sb->mountdata = kstrndup(data, PAGE_SIZE, GFP_KERNEL); + if (cifs_sb->mountdata == NULL) { + root = ERR_PTR(-ENOMEM); + unload_nls(volume_info->local_nls); + kfree(cifs_sb); + goto out; + } + cifs_setup_cifs_sb(volume_info, cifs_sb); mnt_data.vol = volume_info; @@ -701,22 +709,12 @@ cifs_do_mount(struct file_system_type *fs_type, if (sb->s_fs_info) { cFYI(1, "Use existing superblock"); + kfree(cifs_sb->mountdata); unload_nls(cifs_sb->local_nls); kfree(cifs_sb); goto out_shared; } - /* - * Copy mount params for use in submounts. Better to do - * the copy here and deal with the error before cleanup gets - * complicated post-mount. - */ - cifs_sb->mountdata = kstrndup(data, PAGE_SIZE, GFP_KERNEL); - if (cifs_sb->mountdata == NULL) { - root = ERR_PTR(-ENOMEM); - goto out_super; - } - sb->s_flags = flags; /* BB should we make this contingent on mount parm? */ sb->s_flags |= MS_NODIRATIME | MS_NOATIME; @@ -749,6 +747,7 @@ out_super: goto out; out_cifs_sb: + kfree(cifs_sb->mountdata); unload_nls(cifs_sb->local_nls); kfree(cifs_sb); |