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>Originator: Gene Stark

Browse Source 
>Description:

       If a process attempts to open a floppy tape device when the
device has been configured in the kernel, but did not probe and attach
on bootup, then a panic will occur.

[Review:  The current ft situation is a crock, and this only bandaids
 an earlier wound inflicted by making the attach conditional.  This urgently
 requires a review]
Submitted by:	gene
This commit is contained in:
Jordan K. Hubbard 1994-12-04 03:10:09 +00:00
parent d6761eb4f8
commit 9077e6d34c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=4944
1 changed files with 3 additions and 1 deletions
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4
sys/i386/isa/ft.c
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@ -17,7 +17,7 @@
* POSSIBILITY OF SUCH DAMAGE.
*
* ft.c - QIC-40/80 floppy tape driver
* $Id: ft.c,v 1.13 1994/10/23 21:27:14 wollman Exp $
* $Id: ft.c,v 1.14 1994/11/15 14:34:42 bde Exp $
*
* 06/07/94 v0.9 ++sg
* Tape stuck on segment problem should be gone. Re-wrote buffering
@ -2057,6 +2057,8 @@ ftopen(dev_t dev, int arg2) {
if (ftu >= NFT)
return(ENXIO);
fdc = ft_data[ftu].fdc;
if ((fdc == NULL) || (ft_data[ftu].type == NO_TYPE))
return(ENXIO);
/* check for controller already busy with tape */
if (fdc->flags & FDC_TAPE_BUSY)
return(EBUSY);