Hi, David Sterba > -----Original Message----- > From: David Sterba [mailto:dste...@suse.cz] > Sent: Friday, October 30, 2015 9:36 PM > To: Zhao Lei <zhao...@cn.fujitsu.com> > Cc: linux-btrfs@vger.kernel.org > Subject: Re: [PATCH 5/6] btrfs-progs: free comparer_set in cmd_qgroup_show > > On Thu, Oct 29, 2015 at 05:31:47PM +0800, Zhao Lei wrote: > > comparer_set, which was allocated by malloc(), should be free before > > function return. > > > > Signed-off-by: Zhao Lei <zhao...@cn.fujitsu.com> > > --- > > cmds-qgroup.c | 4 +++- > > 1 file changed, 3 insertions(+), 1 deletion(-) > > > > diff --git a/cmds-qgroup.c b/cmds-qgroup.c index a64b716..f069d32 > > 100644 > > --- a/cmds-qgroup.c > > +++ b/cmds-qgroup.c > > @@ -290,7 +290,7 @@ static int cmd_qgroup_show(int argc, char **argv) > > int filter_flag = 0; > > unsigned unit_mode; > > > > - struct btrfs_qgroup_comparer_set *comparer_set; > > + struct btrfs_qgroup_comparer_set *comparer_set = NULL; > > struct btrfs_qgroup_filter_set *filter_set; > > filter_set = btrfs_qgroup_alloc_filter_set(); > > comparer_set = btrfs_qgroup_alloc_comparer_set(); > > @@ -372,6 +372,8 @@ static int cmd_qgroup_show(int argc, char **argv) > > fprintf(stderr, "ERROR: can't list qgroups: %s\n", > > strerror(e)); > > > > + free(comparer_set); > > Doh, coverity correctly found that comparer_set is freed inside > btrfs_show_qgroups() a few lines above. Patch dropped. > My bad.
This problem is find in my node by valgrind memckeck, maybe it is not freed in some case, or a valgrind misreport. I'll check it deeply. Thanks Zhaolei > > + -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html