[PATCH] drm/tve200: Check for IS_ERR instead of NULL in probe

[Dan Carpenter <dan.carpenter@xxxxxxxxxx>]

devm_ioremap_resource() returns error pointer, it never returns NULL on
error.

Fixes: 179c02fe90a4 ("drm/tve200: Add new driver for TVE200")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

diff --git a/drivers/gpu/drm/tve200/tve200_drv.c b/drivers/gpu/drm/tve200/tve200_drv.c
index eae38b669f0a..6939f7455a2d 100644
--- a/drivers/gpu/drm/tve200/tve200_drv.c
+++ b/drivers/gpu/drm/tve200/tve200_drv.c
@@ -225,7 +225,7 @@ static int tve200_probe(struct platform_device *pdev)
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	priv->regs = devm_ioremap_resource(dev, res);
-	if (!priv->regs) {
+	if (IS_ERR(priv->regs)) {
 		dev_err(dev, "%s failed mmio\n", __func__);
 		ret = -EINVAL;
 		goto clk_disable;
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