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check_drive: If the partition isn't a Vinum drive, release it again

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and return NULL.

vinum_scandisk: Don't handle NULL device pointers.
	        Only look at compatibility partition for i386.  This
	        is a kludge which should go away once I have adequate
	        documentation for the New World Order.

Together, these fixes remove occasional error messages about
non-existent drives.  They may also fix a number of problems that have
been reported without a PR.

PRs: None
This commit is contained in:
Greg Lehey 2003-06-15 01:42:01 +00:00
parent 87e31fda52
commit be05126e24
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=116363
1 changed files with 35 additions and 35 deletions
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70
sys/dev/vinum/vinumio.c
View file

@ -368,13 +368,12 @@ check_drive(char *devicename)
}
}
}
} else {
if (drive->lasterror == 0)
drive->lasterror = ENODEV;
return drive;
} else { /* not ours, */
close_drive(drive);
drive->state = drive_down;
free_drive(drive); /* get rid of it */
return NULL;
}
return drive;
}
static char *
@ -758,7 +757,6 @@ vinum_scandisk(char *devicename)
for (cp = devicename; *cp; cp = ep) {
char part; /* UNIX partition */
int slice;
int founddrive; /* flag when we find a vinum drive */
while (*cp == ' ')
cp++; /* find start of name */
@ -777,7 +775,6 @@ vinum_scandisk(char *devicename)
np += ep - cp; /* and point past */
partnamelen = MAXPATHLEN + np - partname; /* remaining length in partition name */
founddrive = 0; /* no vinum drive found yet on this spindle */
/* first try the partition table */
for (slice = 1; slice < 5; slice++)
for (part = 'a'; part < 'i'; part++) {
@ -788,24 +785,27 @@ vinum_scandisk(char *devicename)
slice,
part);
drive = check_drive(partname); /* try to open it */
if ((drive->lasterror != 0) /* didn't work, */
||(drive->state < drive_down))
free_drive(drive); /* get rid of it */
else if (drive->flags & VF_CONFIGURED) /* already read this config, */
log(LOG_WARNING,
"vinum: already read config from %s\n", /* say so */
drive->label.name);
else {
if (gooddrives == drives) /* ran out of entries */
EXPAND(drivelist, int, drives, drives); /* double the size */
drivelist[gooddrives] = drive->driveno; /* keep the drive index */
drive->flags &= ~VF_NEWBORN; /* which is no longer newly born */
gooddrives++;
founddrive++;
if (drive) { /* got something, */
if (drive->flags & VF_CONFIGURED) /* already read this config, */
log(LOG_WARNING,
"vinum: already read config from %s\n", /* say so */
drive->label.name);
else {
if (gooddrives == drives) /* ran out of entries */
EXPAND(drivelist, int, drives, drives); /* double the size */
drivelist[gooddrives] = drive->driveno; /* keep the drive index */
drive->flags &= ~VF_NEWBORN; /* which is no longer newly born */
gooddrives++;
}
}
}
}
if (founddrive == 0) { /* didn't find anything, */
#ifdef __i386__
/*
* This is a kludge. Probably none of this
* should be here.
*/
if (gooddrives == 0) { /* didn't find anything, */
for (part = 'a'; part < 'i'; part++) /* try the compatibility partition */
if (part != 'c') { /* don't do the c partition */
snprintf(np,
@ -813,22 +813,22 @@ vinum_scandisk(char *devicename)
"%c",
part);
drive = check_drive(partname); /* try to open it */
if ((drive->lasterror != 0) /* didn't work, */
||(drive->state < drive_down))
free_drive(drive); /* get rid of it */
else if (drive->flags & VF_CONFIGURED) /* already read this config, */
log(LOG_WARNING,
"vinum: already read config from %s\n", /* say so */
drive->label.name);
else {
if (gooddrives == drives) /* ran out of entries */
EXPAND(drivelist, int, drives, drives); /* double the size */
drivelist[gooddrives] = drive->driveno; /* keep the drive index */
drive->flags &= ~VF_NEWBORN; /* which is no longer newly born */
gooddrives++;
if (drive) { /* got something, */
if (drive->flags & VF_CONFIGURED) /* already read this config, */
log(LOG_WARNING,
"vinum: already read config from %s\n", /* say so */
drive->label.name);
else {
if (gooddrives == drives) /* ran out of entries */
EXPAND(drivelist, int, drives, drives); /* double the size */
drivelist[gooddrives] = drive->driveno; /* keep the drive index */
drive->flags &= ~VF_NEWBORN; /* which is no longer newly born */
gooddrives++;
}
}
}
}
#endif
}
Free(partname);