mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-08-27 19:29:37 +00:00
Code Issues Releases Wiki Activity

media: hantro: Fix probe func error path

Browse source 
[ Upstream commit 37af43b250 ]

If clocks for some reason couldn't be enabled, probe function returns
immediately, without disabling PM. This obviously leaves PM ref counters
unbalanced.

Fix that by jumping to appropriate error path, so effects of PM functions
are reversed.

Fixes: 775fec6900 ("media: add Rockchip VPU JPEG encoder driver")
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Acked-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
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>
This commit is contained in:
Jernej Skrabec 2021-11-29 19:26:25 +01:00 committed by Greg Kroah-Hartman
parent 26cf595abd
commit ba7d5b3e33
1 changed files with 2 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
drivers/staging/media/hantro/hantro_drv.c
View file

@ -823,7 +823,7 @@ static int hantro_probe(struct platform_device *pdev)
ret = clk_bulk_prepare(vpu->variant->num_clocks, vpu->clocks);
if (ret) {
dev_err(&pdev->dev, "Failed to prepare clocks\n");
return ret;
goto err_pm_disable;
}
ret = v4l2_device_register(&pdev->dev, &vpu->v4l2_dev);
@ -879,6 +879,7 @@ static int hantro_probe(struct platform_device *pdev)
v4l2_device_unregister(&vpu->v4l2_dev);
err_clk_unprepare:
clk_bulk_unprepare(vpu->variant->num_clocks, vpu->clocks);
err_pm_disable:
pm_runtime_dont_use_autosuspend(vpu->dev);
pm_runtime_disable(vpu->dev);
return ret;