From fca10453cf51a34ddd0e6bf9c509cdabaa3d1f85 Mon Sep 17 00:00:00 2001 From: Heinrich Schuchardt Date: Sun, 18 Mar 2018 15:18:10 +0100 Subject: [PATCH] video: rk3399_mipi: correct error checking Pointers are never negative. Use macro IS_ERR() for checking. cf. rk3288_mipi.c Signed-off-by: Heinrich Schuchardt Acked-by: Philipp Tomsich Reviewed-by: Philipp Tomsich --- drivers/video/rockchip/rk3399_mipi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/video/rockchip/rk3399_mipi.c b/drivers/video/rockchip/rk3399_mipi.c index 9ef202bf09..c6987ff042 100644 --- a/drivers/video/rockchip/rk3399_mipi.c +++ b/drivers/video/rockchip/rk3399_mipi.c @@ -128,7 +128,7 @@ static int rk_mipi_ofdata_to_platdata(struct udevice *dev) struct rk_mipi_priv *priv = dev_get_priv(dev); priv->grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF); - if (priv->grf <= 0) { + if (!priv->grf || IS_ERR(priv->grf)) { debug("%s: Get syscon grf failed (ret=%p)\n", __func__, priv->grf); return -ENXIO; -- 2.39.5