Pointers are never negative. Use macro IS_ERR() for checking.
cf. rk3288_mipi.c
Signed-off-by: Heinrich Schuchardt <xypron.g...@gmx.de>
---
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..7560e0c07b 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;
--
2.16.2
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