drm: sti: hdmi: fix return value check in sti_hdmi_probe()

In case of error, the function devm_ioremap_nocache() returns NULL
pointer not ERR_PTR(). The IS_ERR() test in the return value check
should be replaced with NULL test.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>

diff --git a/drivers/gpu/drm/sti/sti_hdmi.c b/drivers/gpu/drm/sti/sti_hdmi.c
index 284e541..8319f76 100644 (file)
--- a/drivers/gpu/drm/sti/sti_hdmi.c
+++ b/drivers/gpu/drm/sti/sti_hdmi.c
@@ -713,8 +713,8 @@ static int sti_hdmi_probe(struct platform_device *pdev)
                return -ENOMEM;
        }
        hdmi->regs = devm_ioremap_nocache(dev, res->start, resource_size(res));
-       if (IS_ERR(hdmi->regs))
-               return PTR_ERR(hdmi->regs);
+       if (!hdmi->regs)
+               return -ENOMEM;
 
        if (of_device_is_compatible(np, "st,stih416-hdmi")) {
                res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
@@ -725,8 +725,8 @@ static int sti_hdmi_probe(struct platform_device *pdev)
                }
                hdmi->syscfg = devm_ioremap_nocache(dev, res->start,
                                                    resource_size(res));
-               if (IS_ERR(hdmi->syscfg))
-                       return PTR_ERR(hdmi->syscfg);
+               if (!hdmi->syscfg)
+                       return -ENOMEM;
 
        }