188 static int __init romchecksum(const unsigned char *rom, unsigned long length)  in romchecksum()  argument
192 	for (sum = 0; length && probe_kernel_address(rom++, c) == 0; length--)  in romchecksum()
194 	return !length && !sum;  in romchecksum()
200 	unsigned long start, length, upper;  in probe_roms()  local
217 		length = c * 512;  in probe_roms()
220 		if (length && romchecksum(rom, length))  in probe_roms()
221 			video_rom_resource.end = start + length - 1;  in probe_roms()
238 		length = resource_size(&extension_rom_resource);  in probe_roms()
239 		if (romchecksum(rom, length)) {  in probe_roms()
255 		length = c * 512;  in probe_roms()
258 		if (!length || start + length > upper || !romchecksum(rom, length))  in probe_roms()
262 		adapter_rom_resources[i].end = start + length - 1;  in probe_roms()