From: Jiri Slaby <jirislaby@gmail.com>
Date: Tue, 23 Oct 2007 03:45:13 +0000 (-0700)
Subject: Char: cyclades, fix potential NULL dereference
X-Git-Tag: v2.6.24-rc1~50
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7fa57a0cd98bdd163eeb5f15cbe234c3a0cf68a1;p=pandora-kernel.git

Char: cyclades, fix potential NULL dereference

ztxdone is jumped to even if tty is NULL and tty_wakeup placed after
this label doesn't expect NULLed parameter, so this will cause an oops
in some situations (why they scheduled a wakeup there before remove
bottom half processing patch?).

wakeup only in the case when we have non-null tty struct.

Spotted by Adrian Bunk.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

Reading git-diff-tree failed