diff options
| author |   Evgeny Novikov <novikov@ispras.ru> | 2021-07-28 16:44:32 +0200 |
|---|---|---|
| committer |   Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2021-08-04 14:43:52 +0200 |
| commit | 38367073c796a37a61549b1f66a71b3adb03802d (patch) | |
| tree | a4c753d25918cd6e4f52cb3bf3474d2616200c5c /drivers/media/cec | |
| parent | media: cec-pin: rename timer overrun variables (diff) | |
| download | linux-dev-38367073c796a37a61549b1f66a71b3adb03802d.tar.xz linux-dev-38367073c796a37a61549b1f66a71b3adb03802d.zip | |
media: tegra-cec: Handle errors of clk_prepare_enable()
tegra_cec_probe() and tegra_cec_resume() ignored possible errors of
clk_prepare_enable(). The patch fixes this.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Evgeny Novikov <novikov@ispras.ru>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'drivers/media/cec')
| -rw-r--r-- | drivers/media/cec/platform/tegra/tegra_cec.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/media/cec/platform/tegra/tegra_cec.c b/drivers/media/cec/platform/tegra/tegra_cec.c index 1ac0c70a5981..5e907395ca2e 100644 --- a/drivers/media/cec/platform/tegra/tegra_cec.c +++ b/drivers/media/cec/platform/tegra/tegra_cec.c @@ -366,7 +366,11 @@ static int tegra_cec_probe(struct platform_device *pdev) return -ENOENT; } - clk_prepare_enable(cec->clk); + ret = clk_prepare_enable(cec->clk); + if (ret) { + dev_err(&pdev->dev, "Unable to prepare clock for CEC\n"); + return ret; + } /* set context info. */ cec->dev = &pdev->dev; @@ -446,9 +450,7 @@ static int tegra_cec_resume(struct platform_device *pdev) dev_notice(&pdev->dev, "Resuming\n"); - clk_prepare_enable(cec->clk); - - return 0; + return clk_prepare_enable(cec->clk); } #endif |