BTW: is fixed in 2.1.57
>I don't know how to do diffs yet
Thats easy. Save the original file with a different name (append -2.1.56
for example, this is what I do). Then edit the file, and create a diff
using the diff command:
diff -u drivers/char/apm_bios.c-2.1.56 drivers/char/apm_bios.c
see the diff (and patch) manpage for more information.
Gerd