[PATCH] xhci: host: potential NULL dereference in xhci_generic_plat_probe()

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It's possible to exit the loop with "sysdev" set to NULL.  In that
case we should use "&pdev->dev".

Fixes: ec5499d338ec ("xhci: split out rcar/rz support from xhci-plat.c")
Signed-off-by: Dan Carpenter <error27@xxxxxxxxx>
---
 drivers/usb/host/xhci-plat.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index cd17ccab6e00..b9f9625467d6 100644
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -368,6 +368,9 @@ static int xhci_generic_plat_probe(struct platform_device *pdev)
 #endif
 	}
 
+	if (!sysdev)
+		sysdev = &pdev->dev;
+
 	if (WARN_ON(!sysdev->dma_mask)) {
 		/* Platform did not initialize dma_mask */
 		ret = dma_coerce_mask_and_coherent(sysdev, DMA_BIT_MASK(64));
-- 
2.35.1




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