[media] bdisp: fix error return code in bdisp_probe()

Fix to return error code -EINVAL from the platform_get_resource() error
handling case instead of 0, as done elsewhere in this function.
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Fabien Dessenne <fabien.dessenne@st.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/platform/sti/bdisp/bdisp-v4l2.c

@@ -1337,6 +1337,7 @@ static int bdisp_probe(struct platform_device *pdev)
 	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
 	if (!res) {
 		dev_err(dev, "failed to get IRQ resource\n");
+		ret = -EINVAL;
 		goto err_clk;
 	}