[PATCH] hfs, hfsplus: don't leak s_fs_info and fix an oops
This patch fixes the leak of sb->s_fs_info in both the HFS and HFS+
modules. In addition to this, it fixes an oops happening when trying to
mount a non-hfsplus filesystem using hfsplus. This patch is from Roman
Zippel, based off patches sent by myself.
Signed-off-by: Colin Leroy <colin@colino.net>
Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/hfsplus/super.c b/fs/hfsplus/super.c
index 5f80446..d55ad67 100644
--- a/fs/hfsplus/super.c
+++ b/fs/hfsplus/super.c
@@ -208,7 +208,9 @@
static void hfsplus_put_super(struct super_block *sb)
{
dprint(DBG_SUPER, "hfsplus_put_super\n");
- if (!(sb->s_flags & MS_RDONLY)) {
+ if (!sb->s_fs_info)
+ return;
+ if (!(sb->s_flags & MS_RDONLY) && HFSPLUS_SB(sb).s_vhdr) {
struct hfsplus_vh *vhdr = HFSPLUS_SB(sb).s_vhdr;
vhdr->modify_date = hfsp_now2mt();
@@ -226,6 +228,8 @@
brelse(HFSPLUS_SB(sb).s_vhbh);
if (HFSPLUS_SB(sb).nls)
unload_nls(HFSPLUS_SB(sb).nls);
+ kfree(sb->s_fs_info);
+ sb->s_fs_info = NULL;
}
static int hfsplus_statfs(struct super_block *sb, struct kstatfs *buf)