diff options
| author | Fabio Estevam <festevam@denx.de> | 2021-10-08 16:10:14 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2021-11-30 13:56:16 +0300 |
| commit | ed2f97ad4b21072f849cf4ae6645d1f2b1d3f550 (patch) | |
| tree | 6be8567a8e732cd6d2f8d6b8da73062c3df2c472 /drivers/media/platform | |
| parent | 549cc89cd09a85aaa16dc07ef3db811d5cf9bcb1 (diff) | |
| download | linux-ed2f97ad4b21072f849cf4ae6645d1f2b1d3f550.tar.xz | |
media: imx-pxp: Initialize the spinlock prior to using it
After devm_request_threaded_irq() is called there is a chance that an
interrupt may occur before the spinlock is initialized, which will trigger
a kernel oops.
To prevent that, move the initialization of the spinlock prior to
requesting the interrupts.
Fixes: 51abcf7fdb70 ("media: imx-pxp: add i.MX Pixel Pipeline driver")
Signed-off-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'drivers/media/platform')
| -rw-r--r-- | drivers/media/platform/imx-pxp.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/media/platform/imx-pxp.c b/drivers/media/platform/imx-pxp.c index 723b096fedd1..b7174778db53 100644 --- a/drivers/media/platform/imx-pxp.c +++ b/drivers/media/platform/imx-pxp.c @@ -1659,6 +1659,8 @@ static int pxp_probe(struct platform_device *pdev) if (irq < 0) return irq; + spin_lock_init(&dev->irqlock); + ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, pxp_irq_handler, IRQF_ONESHOT, dev_name(&pdev->dev), dev); if (ret < 0) { @@ -1676,8 +1678,6 @@ static int pxp_probe(struct platform_device *pdev) goto err_clk; } - spin_lock_init(&dev->irqlock); - ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev); if (ret) goto err_clk; |