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| author | phk <phk@FreeBSD.org> | 2001-10-28 09:39:28 +0000 |
|---|---|---|
| committer | phk <phk@FreeBSD.org> | 2001-10-28 09:39:28 +0000 |
| commit | 8c752a11c0bed8bb94fd04769efb2cec3237e7d8 (patch) | |
| tree | 28d0eb4336690e72a7c37fcb1d4d85951c43ff0d /sys/kern/subr_disk.c | |
| parent | f757fda60d8e586e6ba39ba525f615b8cb3fe0ce (diff) | |
| download | FreeBSD-src-8c752a11c0bed8bb94fd04769efb2cec3237e7d8.zip FreeBSD-src-8c752a11c0bed8bb94fd04769efb2cec3237e7d8.tar.gz | |
Fix a problem in the disk related hack where device nodes for a physically
non-existent disk in a legacy /dev on a DEVFS system would panic the system
if stat(2)'ed.
Do not whine about anonymous device nodes not having a si_devsw, they're
not supposed to.
Diffstat (limited to 'sys/kern/subr_disk.c')
| -rw-r--r-- | sys/kern/subr_disk.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/kern/subr_disk.c b/sys/kern/subr_disk.c index 8e637ff..ce5f6e0 100644 --- a/sys/kern/subr_disk.c +++ b/sys/kern/subr_disk.c @@ -48,6 +48,8 @@ disk_dev_synth(dev_t dev) p = RAW_PART; s = WHOLE_DISK_SLICE; pdev = makedev(dp->d_devsw->d_maj, dkmakeminor(u, s, p)); + if (pdev->si_devsw == NULL) + return; /* Probably a unit we don't have */ s = dkslice(dev); p = dkpart(dev); if (s == WHOLE_DISK_SLICE && p == RAW_PART) { |
