d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Fixed an uninitialized variable (argument to vm_map_find) -- problem

Browse Source 
that DG detected, and promptly found a fix.
Submitted by:	davidg
This commit is contained in:
John Dyson 1996-01-29 02:57:33 +00:00
parent f352f5418c
commit 4fd00d508b
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=13688
1 changed files with 8 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
sys/kern/sys_pipe.c
View File

@ -18,7 +18,7 @@
* 5. Modifications may be freely made to this file if the above conditions
* are met.
*
* $Id$
* $Id: sys_pipe.c,v 1.1 1996/01/28 23:38:26 dyson Exp $
*/
#ifndef OLD_PIPE
@ -147,7 +147,7 @@ static void
pipeinit(cpipe)
struct pipe *cpipe;
{
int npages;
int npages, error;
npages = round_page(PIPESIZE)/PAGE_SIZE;
@ -156,15 +156,18 @@ pipeinit(cpipe)
* kernel_object.
*/
cpipe->pipe_buffer.object = vm_object_allocate(OBJT_DEFAULT, npages);
cpipe->pipe_buffer.buffer = (caddr_t) vm_map_min(kernel_map);
/*
* Insert the object into the kernel map, and allocate kva for it.
* The map entry is, by default, pageable.
*/
if (vm_map_find(kernel_map, cpipe->pipe_buffer.object, 0,
error = vm_map_find(kernel_map, cpipe->pipe_buffer.object, 0,
(vm_offset_t *) &cpipe->pipe_buffer.buffer, PIPESIZE, 1,
VM_PROT_ALL, VM_PROT_ALL, 0) != KERN_SUCCESS)
panic("pipeinit: cannot allocate pipe -- out of kvm");
VM_PROT_ALL, VM_PROT_ALL, 0);
if (error != KERN_SUCCESS)
panic("pipeinit: cannot allocate pipe -- out of kvm -- code = %d", error);
cpipe->pipe_buffer.in = 0;
cpipe->pipe_buffer.out = 0;