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AllocateHMASpace needs to check FP_SEG(firstbuf) for 0xffff, since the

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buffers may not live in the HMA.


git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@872 6ac86273-5f31-0410-b378-82cca8765d1b
This commit is contained in:
Bart Oldeman 2004-04-13 11:11:09 +00:00
parent e5f882f2ec
commit 3e1c1a526f
1 changed files with 5 additions and 1 deletions

6
kernel/blockio.c

@ -477,8 +477,12 @@ UWORD dskxfer(COUNT dsk, ULONG blkno, VOID FAR * buf, UWORD numblocks,
void AllocateHMASpace (size_t lowbuffer, size_t highbuffer)
{
REG struct buffer FAR *bp = firstbuf;
int n = LoL_nbuffers;
int n;
if (FP_SEG(bp) != 0xffff)
return;
n = LoL_nbuffers;
do
{
/* check if buffer intersects with requested area */