Hi Ahmad, thanks for the patch. On 23-02-02, Ahmad Fatoum wrote: > Writing past end of a file results in a cryptic error code: > > barebox@board:/ cp /dev/zero /dev/mmc0.part > write: Operation not permitted > cp: Operation not permitted > > Because the cdev's truncate is not implemented and as such partition > can't be increased in size. POSIX specifies EPERM as the correct return > code for truncate(2) in such a situation, but for write(2) it is ENOSPC. > Thus most truncate callbacks in barebox instead return ENOSPC, when > according to POSIX, EPERM would have been the correct error code to > propagate. > > Switching all truncate drivers is a bit more involved, so for now let's > treat EPERM and ENOSPC instead when truncate fails to enlarge a file. > > Reported-by: Marco Felsch <m.felsch@xxxxxxxxxxxxxx> > Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx> Reviewed-by: Marco Felsch <m.felsch@xxxxxxxxxxxxxx>
