phy: rockchip: Fix return value of inno_dsidphy_probe()

When call function devm_platform_ioremap_resource(), we should use IS_ERR()
to check the return value and return PTR_ERR() if failed.

Fixes: b7535a3bc0ba ("phy/rockchip: Add support for Innosilicon MIPI/LVDS/TTL PHY")
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/1590412138-13903-1-git-send-email-yangtiezhu@loongson.cn
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/phy/rockchip/phy-rockchip-inno-dsidphy.c b/drivers/phy/rockchip/phy-rockchip-inno-dsidphy.c
index a7c6c94..8af8c6c 100644 (file)
--- a/drivers/phy/rockchip/phy-rockchip-inno-dsidphy.c
+++ b/drivers/phy/rockchip/phy-rockchip-inno-dsidphy.c
@@ -607,8 +607,8 @@ static int inno_dsidphy_probe(struct platform_device *pdev)
        platform_set_drvdata(pdev, inno);
 
        inno->phy_base = devm_platform_ioremap_resource(pdev, 0);
-       if (!inno->phy_base)
-               return -ENOMEM;
+       if (IS_ERR(inno->phy_base))
+               return PTR_ERR(inno->phy_base);
 
        inno->ref_clk = devm_clk_get(dev, "ref");
        if (IS_ERR(inno->ref_clk)) {