[PATCH] hwrng: omap3-rom fix pointer warning for omap3_rom_rng_idle

[Ben Dooks]

The omap3_rom_rng_idle function takes a pointer, so give
it a pointer instead of a plain 0. This fixes the following
sparse warning:

drivers/char/hw_random/omap3-rom-rng.c:115:28: warning: Using plain integer as 
NULL pointer

Signed-off-by: Ben Dooks <ben.do...@codethink.co.uk>
---
Cc: Arnd Bergmann <a...@arndb.de>
Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
Cc: linux-crypto@vger.kernel.org
Cc: linux-ker...@vger.kernel.org
---
 drivers/char/hw_random/omap3-rom-rng.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/hw_random/omap3-rom-rng.c 
b/drivers/char/hw_random/omap3-rom-rng.c
index 38b719017186..75fe3dc83d28 100644
--- a/drivers/char/hw_random/omap3-rom-rng.c
+++ b/drivers/char/hw_random/omap3-rom-rng.c
@@ -112,7 +112,7 @@ static int omap3_rom_rng_probe(struct platform_device *pdev)
        ret = clk_prepare_enable(rng_clk);
        if (ret)
                return ret;
-       omap3_rom_rng_idle(0);
+       omap3_rom_rng_idle(NULL);
 
        return hwrng_register(&omap3_rom_rng_ops);
 }
-- 
2.23.0