From e50c85f4ebf559a3bac4817b41074c43d4691779 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Fri, 26 Oct 2018 17:47:30 -0700 Subject: [PATCH] Fix segfault on probing a non-PCI platform device on a system with PCI. Some Broadcom set-top-box boards have PCI busses, but the GPU is still probed through DT. We would dereference a null busid here in that case. Signed-off-by: Eric Anholt --- hw/xfree86/common/xf86platformBus.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/xfree86/common/xf86platformBus.c b/hw/xfree86/common/xf86platformBus.c index cef47da03..dadbac6c8 100644 --- a/hw/xfree86/common/xf86platformBus.c +++ b/hw/xfree86/common/xf86platformBus.c @@ -289,7 +289,7 @@ xf86platformProbe(void) for (i = 0; i < xf86_num_platform_devices; i++) { char *busid = xf86_platform_odev_attributes(i)->busid; - if (pci && (strncmp(busid, "pci:", 4) == 0)) { + if (pci && busid && (strncmp(busid, "pci:", 4) == 0)) { platform_find_pci_info(&xf86_platform_devices[i], busid); } -- 2.16.4