mtd: use NULL instead of 0 for an address

Use NULL instead of 0 when returning an address. This fixes a
sparse warning.

Signed-off-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>

diff --git a/drivers/mtd/maps/pcmciamtd.c b/drivers/mtd/maps/pcmciamtd.c
index a3cfad392ed653c1543a5318ddfc40f007b72233..af747af5eee9f9917aa503393e14ddc422a4a531 100644 (file)
--- a/drivers/mtd/maps/pcmciamtd.c
+++ b/drivers/mtd/maps/pcmciamtd.c
@@ -89,7 +89,7 @@ static caddr_t remap_window(struct map_info *map, unsigned long to)
 
        if (!pcmcia_dev_present(dev->p_dev)) {
                pr_debug("device removed\n");
-               return 0;
+               return NULL;
        }
 
        offset = to & ~(dev->win_size-1);