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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/isofs
parent4504230a71566785a05d3e6b53fa1ee071b864eb (diff)
downloadlinaro-lsk-6d729e44a55547c009d7a87ea66bff21a8e0afea.tar.gz
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/isofs')
-rw-r--r--fs/isofs/inode.c8
1 files changed, 2 insertions, 6 deletions
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index 85f96bc651c..6b4dcd4f294 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -46,10 +46,7 @@ static void isofs_put_super(struct super_block *sb)
#ifdef CONFIG_JOLIET
lock_kernel();
- if (sbi->s_nls_iocharset) {
- unload_nls(sbi->s_nls_iocharset);
- sbi->s_nls_iocharset = NULL;
- }
+ unload_nls(sbi->s_nls_iocharset);
unlock_kernel();
#endif
@@ -912,8 +909,7 @@ out_no_root:
printk(KERN_WARNING "%s: get root inode failed\n", __func__);
out_no_inode:
#ifdef CONFIG_JOLIET
- if (sbi->s_nls_iocharset)
- unload_nls(sbi->s_nls_iocharset);
+ unload_nls(sbi->s_nls_iocharset);
#endif
goto out_freesbi;
out_no_read: