Author: avg
Date: Mon May 31 09:10:39 2010
New Revision: 208672
URL: http://svn.freebsd.org/changeset/base/208672
Log:
g_label: fix possible NULL pointer dereference
in case glabel debug level is >= 1 and gp->provider list is empty
for some reason
Found by: clang static analyzer
MFC after: 4 days
Modified:
head/sys/geom/label/g_label.c
Modified: head/sys/geom/label/g_label.c
==============================================================================
--- head/sys/geom/label/g_label.c Mon May 31 09:08:44 2010
(r208671)
+++ head/sys/geom/label/g_label.c Mon May 31 09:10:39 2010
(r208672)
@@ -203,10 +203,8 @@ g_label_destroy(struct g_geom *gp, boole
pp->acr, pp->acw, pp->ace);
return (EBUSY);
}
- } else {
- G_LABEL_DEBUG(1, "Label %s removed.",
- LIST_FIRST(&gp->provider)->name);
- }
+ } else if (pp != NULL)
+ G_LABEL_DEBUG(1, "Label %s removed.", pp->name);
g_slice_spoiled(LIST_FIRST(&gp->consumer));
return (0);
}
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