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drm/sti: Handle return value of platform_get_irq_byname 

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

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/f4b4f1b2cfa5e302ef7ffad4e3efb0d3147709d3.1510914877.git.arvind.yadav.cs@gmail.com
This commit is contained in:
Arvind Yadav 2017-11-17 16:06:06 +05:30 committed by Benjamin Gaignard
parent cb20dd170d
commit c83ecfa585
1 changed files with 5 additions and 0 deletions
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5
drivers/gpu/drm/sti/sti_hdmi.c
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@ -1413,6 +1413,11 @@ 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);