Messages in this thread Patch in this message | | | From | Shailendra Verma <> | Subject | [PATCH] Usb: host - Fix possible NULL derefrence. | Date | Mon, 30 Jan 2017 10:36:29 +0530 |
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of_device_get_match_data could return NULL, and so can cause a NULL pointer dereference later.
Signed-off-by: Shailendra Verma <shailendra.v@samsung.com> --- drivers/usb/host/xhci-tegra.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/usb/host/xhci-tegra.c b/drivers/usb/host/xhci-tegra.c index a59fafb..890c778 100644 --- a/drivers/usb/host/xhci-tegra.c +++ b/drivers/usb/host/xhci-tegra.c @@ -903,6 +903,10 @@ static int tegra_xusb_probe(struct platform_device *pdev) return -ENOMEM; tegra->soc = of_device_get_match_data(&pdev->dev); + if (!tegra->soc) { + dev_err(&pdev->dev, "no device match found\n"); + return -ENODEV; + } mutex_init(&tegra->lock); tegra->dev = &pdev->dev; -- 1.7.9.5
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