diff options
| author | Forest Bond <forest@alittletooquiet.net> | 2011-03-22 10:31:43 -0400 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2011-03-22 14:44:25 +0000 |
| commit | d641f0fd42c2f59459641f039a8da7d3b2adbae8 (patch) | |
| tree | 40e2bf6662daee0310cb30edd48a2160f0afb14d | |
| parent | 3f10ff85bd2bb65e49e52ec4f025dc977985b4b6 (diff) | |
intel_bios_dumper: handle rom_size == 0
Some versions of libpciaccess on Linux set rom_size to 0 for VGA
devices. While this behavior may change, intel_bios_dumper should
handle this situation to be compatible with current versions of the
library.
This fixes segmentation faults on affected systems.
Signed-off-by: Forest Bond <forest.bond@rapidrollout.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
| -rw-r--r-- | tools/intel_bios_dumper.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/intel_bios_dumper.c b/tools/intel_bios_dumper.c index 53293ebd..0fa18339 100644 --- a/tools/intel_bios_dumper.c +++ b/tools/intel_bios_dumper.c @@ -77,6 +77,11 @@ int main(int argc, char **argv) if (dev->vendor_id != 0x8086) errx(1, "Graphics card is non-intel"); + /* Some versions of libpciaccess correct this automatically, but some + * don't. */ + if (dev->rom_size == 0) + dev->rom_size = 64 * 1024; + bios = malloc(dev->rom_size); if (bios == NULL) errx(1, "Couldn't allocate memory for BIOS data\n"); |