Author: kib
Date: Fri Nov 11 19:35:58 2016
New Revision: 308543
URL: https://svnweb.freebsd.org/changeset/base/308543
Log:
MFC r308023:
If the fatchain() call in chainalloc() returned an error, revert
marking the cluster run as in-use.
Modified:
stable/11/sys/fs/msdosfs/msdosfs_fat.c
Directory Properties:
stable/11/ (props changed)
Modified: stable/11/sys/fs/msdosfs/msdosfs_fat.c
==============================================================================
--- stable/11/sys/fs/msdosfs/msdosfs_fat.c Fri Nov 11 19:33:26 2016
(r308542)
+++ stable/11/sys/fs/msdosfs/msdosfs_fat.c Fri Nov 11 19:35:58 2016
(r308543)
@@ -691,8 +691,11 @@ chainalloc(struct msdosfsmount *pmp, u_l
pmp->pm_nxtfree = CLUST_FIRST;
pmp->pm_flags |= MSDOSFS_FSIMOD;
error = fatchain(pmp, start, count, fillwith);
- if (error != 0)
+ if (error != 0) {
+ for (cl = start, n = count; n-- > 0;)
+ usemap_free(pmp, cl++);
return (error);
+ }
#ifdef MSDOSFS_DEBUG
printf("clusteralloc(): allocated cluster chain at %lu (%lu
clusters)\n",
start, count);
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