Get rid of sparse related warnings from places that use integer as NULL pointer. [[email protected]: coding-style fixes] Signed-off-by: Stephen Hemminger <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Jeff Garzik <[email protected]> Cc: Matt Mackall <[email protected]> Cc: Ian Kent <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: Davide Libenzi <[email protected]> Cc: Stephen Smalley <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>