Fix up 0/NULL confusion

drivers/ide/ide.c

@@ -442,7 +442,7 @@ u8 ide_dump_status (ide_drive_t *drive, const char *msg, u8 stat)
 		int opcode = 0x100;
 
 		spin_lock(&ide_lock);
-		rq = 0;
+		rq = NULL;
 		if (HWGROUP(drive))
 			rq = HWGROUP(drive)->rq;
 		spin_unlock(&ide_lock);

include/asm-ppc64/checksum.h

@@ -84,10 +84,10 @@ static inline unsigned short ip_compute_csum(unsigned char * buff, int len)
 }
 
 #define csum_partial_copy_from_user(src, dst, len, sum, errp)   \
-        csum_partial_copy_generic((src), (dst), (len), (sum), (errp), 0)
+        csum_partial_copy_generic((src), (dst), (len), (sum), (errp), NULL)
 
 #define csum_partial_copy_nocheck(src, dst, len, sum)   \
-        csum_partial_copy_generic((src), (dst), (len), (sum), 0, 0)
+        csum_partial_copy_generic((src), (dst), (len), (sum), NULL, NULL)
 
 static inline u32 csum_tcpudp_nofold(u32 saddr,
                                      u32 daddr,