X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Farch%2Fx86%2Fkernel%2Fsysfb_efi.c;fp=kernel%2Farch%2Fx86%2Fkernel%2Fsysfb_efi.c;h=5da924bbf0a0f22aa676f5be5a3f97fe4811b087;hb=52f993b8e89487ec9ee15a7fb4979e0f09a45b27;hp=b285d4e8c68e33bf3d4f2b070fdbcbbce7036d9a;hpb=c189ccac5702322ed843fe17057035b7222a59b6;p=kvmfornfv.git

diff --git a/kernel/arch/x86/kernel/sysfb_efi.c b/kernel/arch/x86/kernel/sysfb_efi.c
index b285d4e8c..5da924bbf 100644
--- a/kernel/arch/x86/kernel/sysfb_efi.c
+++ b/kernel/arch/x86/kernel/sysfb_efi.c
@@ -106,14 +106,24 @@ static int __init efifb_set_system(const struct dmi_system_id *id)
 					continue;
 				for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
 					resource_size_t start, end;
+					unsigned long flags;
+
+					flags = pci_resource_flags(dev, i);
+					if (!(flags & IORESOURCE_MEM))
+						continue;
+
+					if (flags & IORESOURCE_UNSET)
+						continue;
+
+					if (pci_resource_len(dev, i) == 0)
+						continue;
 
 					start = pci_resource_start(dev, i);
-					if (start == 0)
-						break;
 					end = pci_resource_end(dev, i);
 					if (screen_info.lfb_base >= start &&
 					    screen_info.lfb_base < end) {
 						found_bar = 1;
+						break;
 					}
 				}
 			}