lseek on mem/kmem not working as advertised

Michiel Boland (boland@sci.kun.nl)
Wed, 24 Jul 1996 05:03:32 +0200

There is a comment in drivers/char/mem.c, stating that an
lseek() on /dev/mem or /dev/kmem returns 0 if the offset is
negative. However, this is not the case. So either the comment
or the code is incorrect.

--- linux/drivers/char/mem.c.orig Tue Jul 2 18:08:41 1996
+++ linux/drivers/char/mem.c Wed Jul 24 04:49:49 1996
@@ -221,10 +221,10 @@
switch (orig) {
case 0:
file->f_pos = offset;
- return file->f_pos;
+ break;
case 1:
file->f_pos += offset;
- return file->f_pos;
+ break;
default:
return -EINVAL;
}

-- 
Michiel Boland <boland@sci.kun.nl>
University of Nijmegen
The Netherlands