[PATCH] drm/sti: Handle return value of platform_get_irq_byname

[Arvind Yadav]

platform_get_irq_byname() can fail here and we must check its return
value.

Signed-off-by: Arvind Yadav <arvind.yadav.cs at gmail.com>
---
 drivers/gpu/drm/sti/sti_hdmi.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/sti/sti_hdmi.c b/drivers/gpu/drm/sti/sti_hdmi.c
index 30f02d2..adabd41 100644
--- a/drivers/gpu/drm/sti/sti_hdmi.c
+++ b/drivers/gpu/drm/sti/sti_hdmi.c
@@ -1414,6 +1414,11 @@ static int sti_hdmi_probe(struct platform_device *pdev)
 	init_waitqueue_head(&hdmi->wait_event);
 
 	hdmi->irq = platform_get_irq_byname(pdev, "irq");
+	if (hdmi->irq < 0) {
+		DRM_ERROR("Cannot get HDMI irq\n");
+		ret = hdmi->irq;
+		goto release_adapter;
+	}
 
 	ret = devm_request_threaded_irq(dev, hdmi->irq, hdmi_irq,
 			hdmi_irq_thread, IRQF_ONESHOT, dev_name(dev), hdmi);
-- 
2.7.4