diff options
| author | Shao Miller <shao.miller@yrdsb.edu.on.ca> | 2011-01-25 17:16:47 -0500 |
|---|---|---|
| committer | Shao Miller <shao.miller@yrdsb.edu.on.ca> | 2011-01-25 17:16:47 -0500 |
| commit | f76c5d0d0ef296e6b5b942194137d6da593fa653 (patch) | |
| tree | d3065b06bce1d9b909996b3343b3a529d1bbb12c /memdisk | |
| parent | 0e64cf5dc6584e9bfefaeb83cd266de13319baa5 (diff) | |
| download | syslinux-f76c5d0d0ef296e6b5b942194137d6da593fa653.tar.gz | |
memdisk: Fix INT 0x13, AH==0x15 disk drive probe
The function might return CF==0 ("success"), but could
include AH==0 ("no such drive"). This is the case on
at least a number of Dell models. Now we check AH, too.
Signed-off-by: Shao Miller <shao.miller@yrdsb.edu.on.ca>
Diffstat (limited to 'memdisk')
| -rw-r--r-- | memdisk/dskprobe.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/memdisk/dskprobe.c b/memdisk/dskprobe.c index 8c2f27b8..84400a83 100644 --- a/memdisk/dskprobe.c +++ b/memdisk/dskprobe.c @@ -72,7 +72,7 @@ static int probe_int13h_15h(uint8_t drive, com32sys_t * regs) memset(regs, 0, sizeof *regs); probe_any(0x15, drive, regs); - present = !(regs->eflags.l & 1); + present = !(regs->eflags.l & 1) && regs->eax.b[1]; dskprobe_printf(" AH15: CF%d AH%02x\n", regs->eflags.l & 1, regs->eax.b[1]); return present; |