For FreeBSD 4 binaries, when trying to read from a device that does

not exsist, do not have ioctl return an error, but instead set -1
in the data returned to the user.  This allows the HP bios flash
utilities to work without requiring changes to their code.

Reviewed by:	jhb
This commit is contained in:
Paul Saab 2005-08-26 01:00:19 +00:00
parent 89b9c5360e
commit 8910aa92ae
Notes: svn2git 2020-12-20 02:59:44 +00:00
svn path=/head/; revision=149478

View File

@ -28,6 +28,7 @@
__FBSDID("$FreeBSD$");
#include "opt_bus.h" /* XXX trim includes */
#include "opt_compat.h"
#include <sys/param.h>
#include <sys/systm.h>
@ -411,7 +412,13 @@ getconfexit:
io->pi_width);
error = 0;
} else {
error = ENODEV;
#ifdef COMPAT_FREEBSD4
if (cmd == PCIOCREAD) {
io->pi_data = -1;
error = 0;
} else
#endif
error = ENODEV;
}
break;
default: