cmd: usb_mass_storage: Use NULL for pointer
Use NULL for pointer to fix the following sparse warning:
cmd/usb_mass_storage.c:47:15: warning: Using plain integer as NULL pointer
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
diff --git a/cmd/usb_mass_storage.c b/cmd/usb_mass_storage.c
index 86398fc..cb5260b 100644
--- a/cmd/usb_mass_storage.c
+++ b/cmd/usb_mass_storage.c
@@ -44,7 +44,7 @@
for (i = 0; i < ums_count; i++)
free((void *)ums[i].name);
free(ums);
- ums = 0;
+ ums = NULL;
ums_count = 0;
}