x86: vsyscall: Use NULL instead 0 for a pointer argument
x86: vsyscall: Use NULL instead 0 for a pointer argument

This patch silences the following sparse warning:
arch/x86/kernel/vsyscall_64.c:250:34:
       warning: Using plain integer as NULL pointer

Signed-off-by: Emil Goode <8f82f727ceef69ddbc9c99a3e77927715fed00fe@gmail.com>
Acked-by: Andy Lutomirski <2cc0d0d76de2e6f37b92deeb83c85cb306fc5dc1@amacapital.net>
Cc: 33837adfb53316eae44aad04041e1240088d76fd@linaro.org
Link: http://lkml.kernel.org/r/1333306084-3776-1-git-send-email-8f82f727ceef69ddbc9c99a3e77927715fed00fe@gmail.com
Signed-off-by: Thomas Gleixner <00e4cf8f46a57000a44449bf9dd8cbbcc209fd2a@linutronix.de>

KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas