diff options
| author | Gustavo A. R. Silva <gustavo@embeddedor.com> | 2017-08-08 00:08:06 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-11-10 07:41:39 -0800 |
| commit | b99152a593de5df769c889177e731565845aefbd (patch) | |
| tree | a2ebee05af91bbd52ab267c9f817f5b4447bc013 /drivers/gpu/host1x | |
| parent | cc014084cb850df29b19e4bf4419f129c5cfea95 (diff) | |
gpu: host1x: fix error return code in host1x_probe()
[ Upstream commit 7b2c63de20080c18d0de35b292ad61fc9bc8328e ]
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: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/gpu/host1x')
| -rw-r--r-- | drivers/gpu/host1x/dev.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c index 53d3d1d45b48..ce1b10a2ae85 100644 --- a/drivers/gpu/host1x/dev.c +++ b/drivers/gpu/host1x/dev.c @@ -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); |