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video: fbdev: imxfb: fix return value check in imxfb_probe()

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If devm_ioremap_resource() fails, it never return NULL, replace
NULL test with IS_ERR().

Fixes: b083c22d51 ("video: fbdev: imxfb: Convert request_mem_region + ioremap to devm_ioremap_resource")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Helge Deller <deller@gmx.de>
This commit is contained in:
Yang Yingliang
2022-07-29 10:41:34 +08:00
committed by Helge Deller
parent 3eb8fccc24
commit c5c7502e96
1 changed files with 2 additions and 2 deletions
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drivers/video/fbdev/imxfb.c
+2 -2
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@@ -971,9 +971,9 @@ static int imxfb_probe(struct platform_device *pdev)
}
fbi->regs = devm_ioremap_resource(&pdev->dev, res);
if (fbi->regs == NULL) {
if (IS_ERR(fbi->regs)) {
dev_err(&pdev->dev, "Cannot map frame buffer registers\n");
ret = -ENOMEM;
ret = PTR_ERR(fbi->regs);
goto failed_ioremap;
}