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>
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 4162ee4..ec19161 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -687,6 +687,14 @@
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 @@
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 @@
goto out;
out_cifs_sb:
+ kfree(cifs_sb->mountdata);
unload_nls(cifs_sb->local_nls);
kfree(cifs_sb);