From: Tony Breeds <tony@bakeyournoodle.com>
Date: Mon, 25 Jun 2007 23:50:32 +0000 (+1000)
Subject: [POWERPC] Fix VDSO gettimeofday() when called with NULL struct timeval
X-Git-Tag: v2.6.22-rc7~48^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=74609f4536f2b8fd6a48381bbbe3cd37da20a527;p=pandora-kernel.git

[POWERPC] Fix VDSO gettimeofday() when called with NULL struct timeval

Consider the prototype for gettimeofday():
	int gettimofday(struct timeval *tv, struct timezone *tz);

Although it is valid to call with /either/ tv or tz being NULL, and
the C version of sys_gettimeofday() supports this, the current version
of gettimeofday() in the VDSO will SEGV if called with a NULL tv.

This adds a check for tv being NULL so that it doesn't SEGV.

Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---

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