[PATCH] media: imx-pxp: fix ERR_PTR dereference in pxp_probe()

From: Harshit Mogalapalli
Date: Tue May 14 2024 - 06:27:34 EST


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@xxxxxxxxxx>
---
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..58c10156c7a4 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: %d\n");

irq = platform_get_irq(pdev, 0);
if (irq < 0)
--
2.39.3