From d641f0fd42c2f59459641f039a8da7d3b2adbae8 Mon Sep 17 00:00:00 2001 From: Forest Bond Date: Tue, 22 Mar 2011 10:31:43 -0400 Subject: 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 Signed-off-by: Chris Wilson --- tools/intel_bios_dumper.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'tools/intel_bios_dumper.c') 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"); -- cgit v1.2.3