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

[weiyj_lk at 163.com]

From: Wei Yongjun <yongjun_wei at trendmicro.com.cn>

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 at trendmicro.com.cn>
---
 drivers/gpu/drm/sti/sti_hdmi.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/sti/sti_hdmi.c b/drivers/gpu/drm/sti/sti_hdmi.c
index 284e541..8319f76 100644
--- 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;
 
 	}