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From Tom, return 0xFF on invalid drives for int 21h/1c get drive allocation information (sectors/clusters)

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git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@1376 6ac86273-5f31-0410-b378-82cca8765d1b
This commit is contained in:
Kenneth J Davis 2009-05-10 12:36:57 +00:00
parent d9e2861a44
commit c6b55c1119
1 changed files with 19 additions and 15 deletions
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6
kernel/inthndlr.c
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@ -651,10 +651,14 @@ dispatch:
{ {
BYTE FAR *p; BYTE FAR *p;
p = FatGetDrvData(lr.DL, &lr.AL, &lr.CX, &lr.DX); if ((p = FatGetDrvData(lr.DL, &lr.AL, &lr.CX, &lr.DX)) != NULL)
{
lr.DS = FP_SEG(p); lr.DS = FP_SEG(p);
lr.BX = FP_OFF(p); lr.BX = FP_OFF(p);
} }
else
lr.AL = 0xff; /* return 0xff on invalid drive */
}
break; break;
/* Get default DPB */ /* Get default DPB */