Messages in this thread Patch in this message | | | From | Shailendra Verma <> | Subject | [PATCH] Mmc: host - Fix possible NULL derefrence. | Date | Mon, 30 Jan 2017 10:18:18 +0530 |
| |
of_match_device could return NULL, and so can cause a NULL pointer dereference later.
Signed-off-by: Shailendra Verma <shailendra.v@samsung.com> --- drivers/mmc/host/mxs-mmc.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c index 44ecebd..d12a5b7 100644 --- a/drivers/mmc/host/mxs-mmc.c +++ b/drivers/mmc/host/mxs-mmc.c @@ -581,6 +581,11 @@ static int mxs_mmc_probe(struct platform_device *pdev) struct regulator *reg_vmmc; struct mxs_ssp *ssp; + if (!of_id) { + dev_err(&pdev->dev, "Error: No device match found\n"); + return -ENODEV; + } + irq_err = platform_get_irq(pdev, 0); if (irq_err < 0) return irq_err; -- 1.7.9.5
| |