| Message ID | 20240514095038.3464191-1-harshit.m.mogalapalli@oracle.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | [v2] media: imx-pxp: fix ERR_PTR dereference in pxp_probe() | expand |
Hi Harshit, Thank you for the patch. On Tue, May 14, 2024 at 02:50:38AM -0700, Harshit Mogalapalli wrote: > devm_regmap_init_mmio() can fail, add a check and bail out in case of > error. > > Fixes: 4e5bd3fdbeb3 ("media: imx-pxp: convert to regmap") > Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> > --- > This is based on static analysis and only compile tested. > v1->v2: fix error message, we dont need %d in dev_err_probe() > --- > drivers/media/platform/nxp/imx-pxp.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/media/platform/nxp/imx-pxp.c b/drivers/media/platform/nxp/imx-pxp.c > index e62dc5c1a4ae..e4427e6487fb 100644 > --- a/drivers/media/platform/nxp/imx-pxp.c > +++ b/drivers/media/platform/nxp/imx-pxp.c > @@ -1805,6 +1805,9 @@ static int pxp_probe(struct platform_device *pdev) > return PTR_ERR(mmio); > dev->regmap = devm_regmap_init_mmio(&pdev->dev, mmio, > &pxp_regmap_config); > + if (IS_ERR(dev->regmap)) > + return dev_err_probe(&pdev->dev, PTR_ERR(dev->regmap), > + "Failed to init regmap\n"); > > irq = platform_get_irq(pdev, 0); > if (irq < 0)
diff --git a/drivers/media/platform/nxp/imx-pxp.c b/drivers/media/platform/nxp/imx-pxp.c index e62dc5c1a4ae..e4427e6487fb 100644 --- a/drivers/media/platform/nxp/imx-pxp.c +++ b/drivers/media/platform/nxp/imx-pxp.c @@ -1805,6 +1805,9 @@ static int pxp_probe(struct platform_device *pdev) return PTR_ERR(mmio); dev->regmap = devm_regmap_init_mmio(&pdev->dev, mmio, &pxp_regmap_config); + if (IS_ERR(dev->regmap)) + return dev_err_probe(&pdev->dev, PTR_ERR(dev->regmap), + "Failed to init regmap\n"); irq = platform_get_irq(pdev, 0); if (irq < 0)
devm_regmap_init_mmio() can fail, add a check and bail out in case of error. Fixes: 4e5bd3fdbeb3 ("media: imx-pxp: convert to regmap") Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com> --- This is based on static analysis and only compile tested. v1->v2: fix error message, we dont need %d in dev_err_probe() --- drivers/media/platform/nxp/imx-pxp.c | 3 +++ 1 file changed, 3 insertions(+)