Messages in this thread Patch in this message |  | | | Date | Fri, 29 Jul 2005 12:16:17 -0700 | | From | Greg KH <> | | Subject | [patch 14/29] PCI: Adjust PCI rom code to handle more broken ROMs |
| |
From: Jon Smirl <jonsmirl@gmail.com>
There are ROMs reporting that their size exceeds their PCI ROM resource window. This patch returns the minimum of the resource window size or the size in the ROM. An example of this breakage is the XGI Volari Z7.
Signed-off-by: Jon Smirl <jonsmirl@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
--- drivers/pci/rom.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletion(-) --- gregkh-2.6.orig/drivers/pci/rom.c 2005-07-29 11:29:50.000000000 -0700 +++ gregkh-2.6/drivers/pci/rom.c 2005-07-29 11:36:22.000000000 -0700 @@ -125,7 +125,9 @@ image += readw(pds + 16) * 512; } while (!last_image); - *size = image - rom; + /* never return a size larger than the PCI resource window */ + /* there are known ROMs that get the size wrong */ + *size = min((size_t)(image - rom), *size); return rom; } -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
|  |