diff --git a/drivers/bios_emulator/atibios.c b/drivers/bios_emulator/atibios.c
index 5f9bd101d..2881449d9 100644
--- a/drivers/bios_emulator/atibios.c
+++ b/drivers/bios_emulator/atibios.c
@@ -315,7 +315,8 @@ int BootVideoCardBIOS(pci_dev_t pcidev, BE_VGAInfo ** pVGAInfo, int cleanUp)
 	BE_init(0, 65536, VGAInfo, 0);
 
 	/*Post all the display controller BIOS'es*/
-	PCI_postController(pcidev, VGAInfo);
+	if (!PCI_postController(pcidev, VGAInfo))
+		return false;
 
 	/*Cleanup and exit the emulator if requested. If the BIOS emulator
 	is needed after booting the card, we will not call BE_exit and
diff --git a/drivers/video/ati_radeon_fb.c b/drivers/video/ati_radeon_fb.c
index 9ebb0b0c9..529ddae83 100644
--- a/drivers/video/ati_radeon_fb.c
+++ b/drivers/video/ati_radeon_fb.c
@@ -597,7 +597,8 @@ int radeon_probe(struct radeonfb_info *rinfo)
 		rinfo->fb_local_base = INREG(MC_FB_LOCATION) << 16;
 		DPRINT("rinfo->fb_local_base = 0x%x\n",rinfo->fb_local_base);
 		/* PostBIOS with x86 emulater */
-		BootVideoCardBIOS(pdev, NULL, 0);
+		if (!BootVideoCardBIOS(pdev, NULL, 0))
+			return -1;
 
 		/*
 		 * Check for errata