Commit 77191db5 authored by Dan Carpenter's avatar Dan Carpenter Committed by Greg Kroah-Hartman
Browse files

xhci: host: potential NULL dereference in xhci_generic_plat_probe() 



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

Fixes: ec5499d3 ("xhci: split out rcar/rz support from xhci-plat.c")
Signed-off-by: default avatarDan Carpenter <error27@gmail.com>
Acked-by: default avatarArnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/Y+T4kTcJwRwxNHJq@kili


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent c4a07e26

drivers/usb/host/xhci-plat.c

+3 −0
Original line number Diff line number Diff line
@@ -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));