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 86398fc24e8bf799887d46a60fb4b2b091cba98f..cb5260b558c4227b8e5e0018a7f4150e436db76f 100644 (file)
--- a/cmd/usb_mass_storage.c
+++ b/cmd/usb_mass_storage.c
@@ -44,7 +44,7 @@ static void ums_fini(void)
        for (i = 0; i < ums_count; i++)
                free((void *)ums[i].name);
        free(ums);
-       ums = 0;
+       ums = NULL;
        ums_count = 0;
 }