of_match_device could return NULL, and so cause a NULL pointer dereference later.
Signed-off-by: Shailendra Verma <[email protected]> --- drivers/dma/mv_xor.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c index 23f7528..c25b3bb 100644 --- a/drivers/dma/mv_xor.c +++ b/drivers/dma/mv_xor.c @@ -1323,7 +1323,10 @@ static int mv_xor_probe(struct platform_device *pdev) const struct of_device_id *of_id = of_match_device(mv_xor_dt_ids, &pdev->dev); + if (!of_id) { + dev_err(&pdev->dev, "Error: No device match found\n"); + return -ENODEV; + } xordev->xor_type = (uintptr_t)of_id->data; } -- 1.7.9.5
