tree f73c0abf05df85497b0323290e6cfff948a7fadd
parent ca74c013441200b162f6a384b23b833d1865a9e8
author Tony Breeds <tony@bakeyournoodle.com> 1182815432 +1000
committer Paul Mackerras <paulus@samba.org> 1182832879 +1000

[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>