Change flashrom.c:map_flash_registers() from int to void

The function exit()s on failure, and no callers check the return value.

Corresponding to flashrom svn r396 and coreboot v2 svn r3901.
Signed-off-by: Peter Stuge <peter@stuge.se>
Acked-by: Peter Stuge <peter@stuge.se>

flash.h

@@ -481,7 +481,7 @@ extern int verbose;
 
 /* flashrom.c */
 void mmap_errmsg();
-int map_flash_registers(struct flashchip *flash);
+void map_flash_registers(struct flashchip *flash);
 
 /* layout.c */
 int show_id(uint8_t *bios, int size, int force);

flashrom.c

@@ -95,7 +95,7 @@ void mmap_errmsg()
 	}
 }
 
-int map_flash_registers(struct flashchip *flash)
+void map_flash_registers(struct flashchip *flash)
 {
 	volatile uint8_t *registers;
 	size_t size = flash->total_size * 1024;
@@ -109,8 +109,6 @@ int map_flash_registers(struct flashchip *flash)
 		exit(1);
 	}
 	flash->virtual_registers = registers;
-
-	return 0;
 }
 
 struct flashchip *probe_flash(struct flashchip *first_flash, int force)