batman-adv: add sanity check when removing global tts
authorSimon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>
Wed, 19 Oct 2011 08:28:26 +0000 (10:28 +0200)
committerGreg Kroah-Hartman <gregkh@suse.de>
Sat, 26 Nov 2011 17:08:39 +0000 (09:08 -0800)
commit9bab392e4a2120bba4f6fbe8676a5baf16756926
treed779131259e36c7e55f213454e4a9965eeb7c7c6
parent7766f4ed0b29204dc9248dea3bc547a8c93d18cb
batman-adv: add sanity check when removing global tts

commit 6e8014947d6469df1566e9e253805557c5c0e4e0 upstream.

After removing the batman-adv module, the hash may be already gone
when tt_global_del_orig() tries to clean the hash. This patch adds
a sanity check to avoid this.

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Tested-by: Alexey Fisher <bug-track@fisher-privat.net>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
net/batman-adv/translation-table.c