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Don't generate any errors here other than EIO. An invalid partition

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table is not an error, it just causes a smaller slice table.
This commit is contained in:
Bruce Evans 1995-02-21 08:37:09 +00:00
parent d66cc71bb5
commit 22544eb7a0
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=6597
2 changed files with 20 additions and 28 deletions
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24
sys/i386/isa/diskslice_machdep.c
View File

@ -35,7 +35,7 @@
*
* from: @(#)ufs_disksubr.c 7.16 (Berkeley) 5/4/91
* from: ufs_disksubr.c,v 1.8 1994/06/07 01:21:39 phk Exp $
* $Id: diskslice_machdep.c,v 1.3 1995/01/23 02:31:53 phk Exp $
* $Id: diskslice_machdep.c,v 1.4 1995/02/16 15:19:19 bde Exp $
*/
#include <stddef.h>
@ -70,8 +70,8 @@ dsinit(dname, dev, strat, lp, sspp)
/*
* Allocate a dummy slices "struct" and initialize it to contain
* only an empty compatibility slice (pointing to itself) and a
* whole disk slice (which may be a dummy if the label is a dummy).
* If there is an error, then these slices become the only slices.
* whole disk slice (covering the disk as described by the label).
* If there is an error, then the dummy struct becomes final.
*/
ssp = malloc(offsetof(struct diskslices, dss_slices)
+ BASE_SLICE * sizeof *sp, M_DEVBUF, M_WAITOK);
@ -169,15 +169,6 @@ dsinit(dname, dev, strat, lp, sspp)
if (error != 0)
goto done;
/*
* We're not handling extended partitions yet, so there are always
* BASE_SLICE + NDOSPART slices.
*/
if (dkslice(dev) >= BASE_SLICE + NDOSPART) {
error = ENXIO;
goto done;
}
/*
* Accept the DOS partition table.
* First adjust the label (we have been careful not to change it
@ -204,7 +195,6 @@ dsinit(dname, dev, strat, lp, sspp)
M_DEVBUF, M_WAITOK);
*sspp = ssp;
ssp->dss_first_bsd_slice = COMPATIBILITY_SLICE;
ssp->dss_nslices = BASE_SLICE + NDOSPART;
sp = &ssp->dss_slices[0];
bzero(sp, (BASE_SLICE + NDOSPART) * sizeof *sp);
sp[WHOLE_DISK_SLICE].ds_size = lp->d_secperunit;
@ -227,10 +217,16 @@ dsinit(dname, dev, strat, lp, sspp)
#endif
}
/*
* We're not handling extended partitions yet, so there are always
* BASE_SLICE + NDOSPART slices altogether.
*/
ssp->dss_nslices = BASE_SLICE + NDOSPART;
done:
bp->b_flags = B_INVAL | B_AGE;
brelse(bp);
if (error == EINVAL)
error = (dkslice(dev) == WHOLE_DISK_SLICE ? 0 : ENXIO);
error = 0;
return (error);
}

24
sys/kern/subr_diskmbr.c
View File

@ -35,7 +35,7 @@
*
* from: @(#)ufs_disksubr.c 7.16 (Berkeley) 5/4/91
* from: ufs_disksubr.c,v 1.8 1994/06/07 01:21:39 phk Exp $
* $Id: diskslice_machdep.c,v 1.3 1995/01/23 02:31:53 phk Exp $
* $Id: diskslice_machdep.c,v 1.4 1995/02/16 15:19:19 bde Exp $
*/
#include <stddef.h>
@ -70,8 +70,8 @@ dsinit(dname, dev, strat, lp, sspp)
/*
* Allocate a dummy slices "struct" and initialize it to contain
* only an empty compatibility slice (pointing to itself) and a
* whole disk slice (which may be a dummy if the label is a dummy).
* If there is an error, then these slices become the only slices.
* whole disk slice (covering the disk as described by the label).
* If there is an error, then the dummy struct becomes final.
*/
ssp = malloc(offsetof(struct diskslices, dss_slices)
+ BASE_SLICE * sizeof *sp, M_DEVBUF, M_WAITOK);
@ -169,15 +169,6 @@ dsinit(dname, dev, strat, lp, sspp)
if (error != 0)
goto done;
/*
* We're not handling extended partitions yet, so there are always
* BASE_SLICE + NDOSPART slices.
*/
if (dkslice(dev) >= BASE_SLICE + NDOSPART) {
error = ENXIO;
goto done;
}
/*
* Accept the DOS partition table.
* First adjust the label (we have been careful not to change it
@ -204,7 +195,6 @@ dsinit(dname, dev, strat, lp, sspp)
M_DEVBUF, M_WAITOK);
*sspp = ssp;
ssp->dss_first_bsd_slice = COMPATIBILITY_SLICE;
ssp->dss_nslices = BASE_SLICE + NDOSPART;
sp = &ssp->dss_slices[0];
bzero(sp, (BASE_SLICE + NDOSPART) * sizeof *sp);
sp[WHOLE_DISK_SLICE].ds_size = lp->d_secperunit;
@ -227,10 +217,16 @@ dsinit(dname, dev, strat, lp, sspp)
#endif
}
/*
* We're not handling extended partitions yet, so there are always
* BASE_SLICE + NDOSPART slices altogether.
*/
ssp->dss_nslices = BASE_SLICE + NDOSPART;
done:
bp->b_flags = B_INVAL | B_AGE;
brelse(bp);
if (error == EINVAL)
error = (dkslice(dev) == WHOLE_DISK_SLICE ? 0 : ENXIO);
error = 0;
return (error);
}