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authorFlavio Ceolin <flavio.ceolin@intel.com>2017-12-06 11:38:50 -0500
committerMauro Carvalho Chehab <mchehab@s-opensource.com>2017-12-18 14:57:45 -0500
commit9392483122e8818c0bf38e82ccf01b71e0c2151e (patch)
tree8ea48bcf679385cb7558ff4c3ba3e280fe51eb8c /drivers/media
parent866a6eccdd998418065ff28fd280252bfa63e43c (diff)
media: pxa_camera: disable and unprepare the clock source on error
pxa_camera_probe() was not calling pxa_camera_deactivate(), responsible to call clk_disable_unprepare(), on the failure path. This was leading to unbalancing source clock. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/platform/pxa_camera.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/media/platform/pxa_camera.c b/drivers/media/platform/pxa_camera.c
index 305cf1cac210..d68407303043 100644
--- a/drivers/media/platform/pxa_camera.c
+++ b/drivers/media/platform/pxa_camera.c
@@ -2491,7 +2491,7 @@ static int pxa_camera_probe(struct platform_device *pdev)
dev_set_drvdata(&pdev->dev, pcdev);
err = v4l2_device_register(&pdev->dev, &pcdev->v4l2_dev);
if (err)
- goto exit_free_dma;
+ goto exit_deactivate;
pcdev->asds[0] = &pcdev->asd;
pcdev->notifier.subdevs = pcdev->asds;
@@ -2527,6 +2527,8 @@ exit_free_clk:
v4l2_clk_unregister(pcdev->mclk_clk);
exit_free_v4l2dev:
v4l2_device_unregister(&pcdev->v4l2_dev);
+exit_deactivate:
+ pxa_camera_deactivate(pcdev);
exit_free_dma:
dma_release_channel(pcdev->dma_chans[2]);
exit_free_dma_u: