Attachment 110292 Details for Bug 229278

[patch] bug-197190_p_pci-off-by-one.diff

bug-197190_p_pci-off-by-one.diff (text/plain), 2.07 KB, created by Stefan Dirsch on 2006-12-19 13:47:33 UTC

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Creator: Stefan Dirsch

Created: 2006-12-19 13:47:33 UTC

Size: 2.07 KB

patch

obsolete

>--- hw/xfree86/os-support/bus/linuxPci.c
>+++ hw/xfree86/os-support/bus/linuxPci.c
>@@ -550,15 +550,15 @@
> 	return result;
> 
>     if (!pPCI || pPCI->fakeDevice)
>-	return 1;		/* Domain 0 is reserved */
>+	return 0;
> 
>     if ((fd = linuxPciOpenFile(pPCI ? pPCI->tag : 0,FALSE)) < 0)
>-	return 0;
>+	return -1;
> 
>     if ((result = ioctl(fd, PCIIOC_CONTROLLER, 0)) < 0)
>-	return 0;
>+	return -1;
> 
>-    return result + 1;		/* Domain 0 is reserved */
>+    return result;
> }
> 
> static pointer
>@@ -628,7 +628,7 @@
>     return NULL;
> }
> 
>-#define MAX_DOMAINS 257
>+#define MAX_DOMAINS 256
> static pointer DomainMmappedIO[MAX_DOMAINS];
> 
> static int
>@@ -649,11 +649,10 @@
> 	domain = xf86GetPciDomain(Tag);
> 	bus = PCI_BUS_NO_DOMAIN(PCI_BUS_FROM_TAG(Tag));
> 
>-	/* Domain 0 is reserved -- see xf86GetPciDomain() */
>-	if ((domain <= 0) || (domain >= MAX_DOMAINS))
>+	if ((domain < 0) || (domain >= MAX_DOMAINS))
> 	    FatalError("linuxOpenLegacy():  domain out of range\n");
> 
>-	sprintf(path, PREFIX, domain - 1, bus, name);
>+	sprintf(path, PREFIX, domain, bus, name);
> 	fd = open(path, O_RDWR);
> 	if (fd >= 0) {
> 	    xfree(path);
>@@ -685,7 +684,6 @@
> xf86MapDomainMemory(int ScreenNum, int Flags, PCITAG Tag,
> 		    ADDRESS Base, unsigned long Size)
> {
>-    int domain = xf86GetPciDomain(Tag);
>     int fd;
>     pointer addr;
> 
>@@ -733,7 +731,7 @@
>     int domain = xf86GetPciDomain(Tag);
>     int fd;
> 
>-    if ((domain <= 0) || (domain >= MAX_DOMAINS))
>+    if ((domain < 0) || (domain >= MAX_DOMAINS))
> 	FatalError("xf86MapDomainIO():  domain out of range\n");
> 
>     if (DomainMmappedIO[domain])
>@@ -847,7 +845,7 @@
> 		  RANGE_TYPE(ResExcIoBlock, domain));
> 	    pRes = xf86AddResToList(pRes, &range, -1);
> 
>-	    if (domain <= 0)
>+	    if (domain < 0)
> 		break;
> 	}
>     }
>@@ -881,7 +879,7 @@
> 		  RANGE_TYPE(ResExcIoBlock, domain));
> 	    pRes = xf86AddResToList(pRes, &range, -1);
> 
>-	    if (domain <= 0)
>+	    if (domain < 0)
> 		break;
> 	}
>     }
>@@ -933,7 +931,7 @@
> 		  RANGE_TYPE(ResExcIoBlock, domain));
> 	    pRes = xf86AddResToList(pRes, &range, -1);
> 
>-	    if (domain <= 0)
>+	    if (domain < 0)
> 		break;
> 	}
>     }

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Attachments on bug 229278: 110064 | 110065 | 110071 | 110292 | 188306 | 232093