From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 24 Jul 2012 11:52:04 +0000 (+0100)
Subject: tty: handle NULL parameters in free_tty_struct()
X-Git-Tag: omap-cleanup-sparseirq-for-v3.7~144
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dc6802a771e91050fb686dfeeb9de4c6c9cadb79;p=pandora-kernel.git

tty: handle NULL parameters in free_tty_struct()

We sometimes pass NULL pointers to free_tty_struct().  One example where
it can happen is in the error handling code in pty_common_install().

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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