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authorThomas Gleixner <tglx@linutronix.de>2009-08-16 21:05:08 +0000
committerAl Viro <viro@zeniv.linux.org.uk>2009-09-24 07:47:42 -0400
commit6d729e44a55547c009d7a87ea66bff21a8e0afea (patch)
treec27e69babb9b397ad56cb20a935b75c35ceb364f /fs/hfs
parent4504230a71566785a05d3e6b53fa1ee071b864eb (diff)
downloadlwn-6d729e44a55547c009d7a87ea66bff21a8e0afea.tar.gz
lwn-6d729e44a55547c009d7a87ea66bff21a8e0afea.zip
fs: Make unload_nls() NULL pointer safe
Most call sites of unload_nls() do: if (nls) unload_nls(nls); Check the pointer inside unload_nls() like we do in kfree() and simplify the call sites. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Steve French <sfrench@us.ibm.com> Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Cc: Petr Vandrovec <vandrove@vc.cvut.cz> Cc: Anton Altaparmakov <aia21@cantab.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/hfs')
-rw-r--r--fs/hfs/mdb.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/fs/hfs/mdb.c b/fs/hfs/mdb.c
index 7b6165f25fbe..8bbe03c3f6d5 100644
--- a/fs/hfs/mdb.c
+++ b/fs/hfs/mdb.c
@@ -344,10 +344,8 @@ void hfs_mdb_put(struct super_block *sb)
brelse(HFS_SB(sb)->mdb_bh);
brelse(HFS_SB(sb)->alt_mdb_bh);
- if (HFS_SB(sb)->nls_io)
- unload_nls(HFS_SB(sb)->nls_io);
- if (HFS_SB(sb)->nls_disk)
- unload_nls(HFS_SB(sb)->nls_disk);
+ unload_nls(HFS_SB(sb)->nls_io);
+ unload_nls(HFS_SB(sb)->nls_disk);
free_pages((unsigned long)HFS_SB(sb)->bitmap, PAGE_SIZE < 8192 ? 1 : 0);
kfree(HFS_SB(sb));