diff options
| author | Evgeny Novikov <novikov@ispras.ru> | 2021-07-28 16:44:32 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-09-18 13:40:25 +0200 |
| commit | 4e014ff22e4bca97193bc36fd67c2233422690b6 (patch) | |
| tree | e7e7e04f69d66ce6de5d5c8db5dc99a2c297e926 /drivers/media/cec | |
| parent | c159db240cf27af29f4e4e747c8bd60faa5e34fa (diff) | |
media: tegra-cec: Handle errors of clk_prepare_enable()
[ Upstream commit 38367073c796a37a61549b1f66a71b3adb03802d ]
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>
Signed-off-by: Sasha Levin <sashal@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 |