Commit b99152a5 authored by Gustavo A. R. Silva's avatar Gustavo A. R. Silva Committed by Greg Kroah-Hartman

gpu: host1x: fix error return code in host1x_probe()

[ Upstream commit 7b2c63de ]

platform_get_irq() returns an error code, but the host1x driver
ignores it and always returns -ENXIO. This is not correct and,
prevents -EPROBE_DEFER from being propagated properly.

Notice that platform_get_irq() no longer returns 0 on error:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e330b9a6bb35dc7097a4f02cb1ae7b6f96df92af

Print and propagate the return value of platform_get_irq on failure.

This issue was detected with the help of Coccinelle.
Signed-off-by: 's avatarGustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: 's avatarThierry Reding <treding@nvidia.com>
Signed-off-by: 's avatarSasha Levin <sashal@kernel.org>
parent cc014084
......@@ -116,8 +116,8 @@ static int host1x_probe(struct platform_device *pdev)
syncpt_irq = platform_get_irq(pdev, 0);
if (syncpt_irq < 0) {
dev_err(&pdev->dev, "failed to get IRQ\n");
return -ENXIO;
dev_err(&pdev->dev, "failed to get IRQ: %d\n", syncpt_irq);
return syncpt_irq;
}
host = devm_kzalloc(&pdev->dev, sizeof(*host), GFP_KERNEL);
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment