FAILED: patch "[PATCH] usb: host: xhci-plat: fix NULL pointer in probe for device" failed to apply to 4.3-stable tree

The patch below does not apply to the 4.3-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From: Gregory CLEMENT <[email protected]>
Date: Tue, 26 Jan 2016 17:50:11 +0200
Subject: [PATCH] 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.

index 770b6b088797..d39d6bf1d090 100644
@@ -184,7 +184,8 @@ static int xhci_plat_probe(struct platform_device *pdev)
 		struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd);
 
 		/* Just copy data for now */
-		*priv = *priv_match;
+		if (priv_match)
+			*priv = *priv_match;
 	}
 
 	if (xhci_plat_type_is(hcd, XHCI_PLAT_TYPE_MARVELL_ARMADA)) {