Author: mjg
Date: Thu Oct 20 19:55:50 2016
New Revision: 307685
URL: https://svnweb.freebsd.org/changeset/base/307685
Log:
cache: fix up a corner case in r307650
If no negative entry is found on the last list, the ncp pointer will be
left uninitialized and a non-null value will make the function assume an
entry was found.
Fix the problem by initializing to NULL on entry.
Reported by: glebius
Modified:
head/sys/kern/vfs_cache.c
Modified: head/sys/kern/vfs_cache.c
==============================================================================
--- head/sys/kern/vfs_cache.c Thu Oct 20 19:42:26 2016 (r307684)
+++ head/sys/kern/vfs_cache.c Thu Oct 20 19:55:50 2016 (r307685)
@@ -763,6 +763,8 @@ cache_negative_shrink_select(int start,
struct namecache *ncp;
int i;
+ *ncpp = ncp = NULL;
+
for (i = start; i < numneglists; i++) {
neglist = &neglists[i];
if (TAILQ_FIRST(&neglist->nl_list) == NULL)
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