flashrom: fix sparse warning: Using plain integer as NULL pointer

This patch fixes the "using plain integer as NULL pointer" warnings
generated by running sparse on the flashrom source.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Acked-by: Mathias Krause <mathias.krause@secunet.com>
Acked-by: Stefan Reinauer <stepan@coreboot.org>



git-svn-id: svn://coreboot.org/flashrom/trunk@1255 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
diff --git a/programmer.c b/programmer.c
index 0160867..5c1f963 100644
--- a/programmer.c
+++ b/programmer.c
@@ -30,7 +30,7 @@
 void *fallback_map(const char *descr, unsigned long phys_addr, size_t len)
 {
 	/* FIXME: Should return phys_addr. */
-	return 0;
+	return NULL;
 }
 
 /* No-op/fallback unmap() for programmers which don't need special handling */