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Commit 2ad294d5 authored by Gregory CLEMENT's avatar Gregory CLEMENT Committed by Greg Kroah-Hartman
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usb: host: xhci-plat: fix NULL pointer in probe for device tree case 



During probe, in the device tree case, the data pointer associated to a
compatible is dereferenced. However, not all the compatibles are
associated to a private data pointer.

The generic-xhci and the xhci-platform don't need them, this patch adds a
test on the data pointer before accessing it, avoiding a kernel crash.

Fixes: 4efb2f69 ("usb: host: xhci-plat: add struct xhci_plat_priv")
Cc: stable@vger.kernel.org
Signed-off-by: default avatarGregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: default avatarMathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 882fa27f

drivers/usb/host/xhci-plat.c

+2 −1
Original line number Diff line number Diff line
@@ -184,6 +184,7 @@ static int xhci_plat_probe(struct platform_device *pdev) 
		struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd);



		/* Just copy data for now */

		if (priv_match)

			*priv = *priv_match;

	}