st-hva: fix some error handling in hva_hw_probe()

The devm_ioremap_resource() returns error pointers, never NULL. The platform_get_resource() returns NULL on error, never error pointers. The error code needs to be set, as well. The current code returns PTR_ERR(NULL) which is success.

Fixes 57b2c0628b60 ("[media] st-hva: multi-format video encoder V4L2 driver")

Signed-off-by Dan Carpenter <[email protected]>

drivers/media/platform/sti/hva/hva-hw.c +3 -3

index d341d49..cf2a8d8 100644
@@ -305,16 +305,16 @@ int hva_hw_probe(struct platform_device *pdev, struct hva_dev *hva)
 	/* get memory for registers */
 	regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	hva->regs = devm_ioremap_resource(dev, regs);
-	if (IS_ERR_OR_NULL(hva->regs)) {
+	if (IS_ERR(hva->regs)) {
 		dev_err(dev, "%s     failed to get regs\n", HVA_PREFIX);
 		return PTR_ERR(hva->regs);
 	}
 
 	/* get memory for esram */
 	esram = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-	if (IS_ERR_OR_NULL(esram)) {
+	if (!esram) {
 		dev_err(dev, "%s     failed to get esram\n", HVA_PREFIX);
-		return PTR_ERR(esram);
+		return -ENODEV;
 	}
 	hva->esram_addr = esram->start;
 	hva->esram_size = resource_size(esram);