From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Mon, 12 Oct 2009 17:13:54 +0000 (+0200)
Subject: tty, serial: Fix race and NULL check in uart_close()
X-Git-Tag: v2.6.32-rc5~39
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=eea7e17e0eb23729d58368420659f8e7c357d82e;p=pandora-kernel.git

tty, serial: Fix race and NULL check in uart_close()

Commit 46d57a449aa1 ("serial: use tty_port pointers in the core code")
contained two bugs that causes (rare) crashes:

 - the rename typoed one site

 - a NULL check was missed

Reported-and-tested-by: Ingo Molnar <mingo@elte.hu>
Cc: Greg KH <gregkh@suse.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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