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From: Eric Sandeen <sandeen@redhat.com>
To: linux-btrfs@vger.kernel.org
Cc: Eric Sandeen <sandeen@redhat.com>
Subject: [PATCH 13/17] btrfs-progs: close fd on cmd_subvol_get_default return
Date: Mon, 25 Feb 2013 16:54:46 -0600	[thread overview]
Message-ID: <1361832890-40921-14-git-send-email-sandeen@redhat.com> (raw)
In-Reply-To: <1361832890-40921-1-git-send-email-sandeen@redhat.com>

Without this we leak the fd when we return from the
function.

Also, remove the senseless random return values.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
---
 cmds-subvolume.c |   20 ++++++++++++--------
 1 files changed, 12 insertions(+), 8 deletions(-)

diff --git a/cmds-subvolume.c b/cmds-subvolume.c
index f9258fc..0dfaefe 100644
--- a/cmds-subvolume.c
+++ b/cmds-subvolume.c
@@ -624,7 +624,7 @@ static const char * const cmd_subvol_get_default_usage[] = {
 
 static int cmd_subvol_get_default(int argc, char **argv)
 {
-	int fd;
+	int fd = -1;
 	int ret;
 	char *subvol;
 	struct btrfs_list_filter_set *filter_set;
@@ -638,35 +638,36 @@ static int cmd_subvol_get_default(int argc, char **argv)
 	ret = test_issubvolume(subvol);
 	if (ret < 0) {
 		fprintf(stderr, "ERROR: error accessing '%s'\n", subvol);
-		return 12;
+		return 1;
 	}
 	if (!ret) {
 		fprintf(stderr, "ERROR: '%s' is not a subvolume\n", subvol);
-		return 13;
+		return 1;
 	}
 
 	fd = open_file_or_dir(subvol);
 	if (fd < 0) {
 		fprintf(stderr, "ERROR: can't access '%s'\n", subvol);
-		return 12;
+		return 1;
 	}
 
 	ret = btrfs_list_get_default_subvolume(fd, &default_id);
 	if (ret) {
 		fprintf(stderr, "ERROR: can't perform the search - %s\n",
 			strerror(errno));
-		return ret;
+		goto out;
 	}
 
+	ret = 1;
 	if (default_id == 0) {
 		fprintf(stderr, "ERROR: 'default' dir item not found\n");
-		return ret;
+		goto out;
 	}
 
 	/* no need to resolve roots if FS_TREE is default */
 	if (default_id == BTRFS_FS_TREE_OBJECTID) {
 		printf("ID 5 (FS_TREE)\n");
-		return ret;
+		goto out;
 	}
 
 	filter_set = btrfs_list_alloc_filter_set();
@@ -684,8 +685,11 @@ static int cmd_subvol_get_default(int argc, char **argv)
 
 	if (filter_set)
 		btrfs_list_free_filter_set(filter_set);
+out:
+	if (fd != -1)
+		close(fd);
 	if (ret)
-		return 19;
+		return 1;
 	return 0;
 }
 
-- 
1.7.1


  parent reply	other threads:[~2013-02-25 21:55 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-02-25 22:54 [PATCH 00/17] btrfs-progs: More misc fixes & cleanups Eric Sandeen
2013-02-25 22:54 ` [PATCH 01/17] btrfs-progs: Unify size-parsing Eric Sandeen
2013-02-25 23:26   ` Zach Brown
2013-02-25 23:37     ` Eric Sandeen
2013-02-26  0:26       ` Zach Brown
2013-02-26 18:50   ` Goffredo Baroncelli
2013-02-26 20:17     ` Eric Sandeen
2013-02-26 21:15       ` Goffredo Baroncelli
2013-02-25 22:54 ` [PATCH 02/17] btrfs-progs: fix btrfs_get_subvol cut/paste error Eric Sandeen
2013-02-25 22:54 ` [PATCH 03/17] btrfs-progs: Remove write-only var fdres in cmd_dev_stats() Eric Sandeen
2013-02-25 22:54 ` [PATCH 04/17] btrfs-progs: btrfs_list_get_path_rootid error handling Eric Sandeen
2013-02-25 22:54 ` [PATCH 05/17] btrfs-progs: avoid double-free in __btrfs_map_block Eric Sandeen
2013-02-25 22:54 ` [PATCH 06/17] btrfs-progs: fix open error test in cmd_start_replace Eric Sandeen
2013-02-25 22:54 ` [PATCH 07/17] btrfs-progs: fix close of error fd in scrub cancel Eric Sandeen
2013-02-25 22:54 ` [PATCH 08/17] btrfs-progs: more scrub cancel error handling Eric Sandeen
2013-02-25 22:54 ` [PATCH 09/17] btrfs-progs: free memory before error exit in read_whole_eb Eric Sandeen
2013-02-25 22:54 ` [PATCH 10/17] btrfs-progs: don't call close on error fd Eric Sandeen
2013-02-25 22:54 ` [PATCH 11/17] btrfs-progs: provide positive errno to strerror in cmd_restore Eric Sandeen
2013-02-25 22:54 ` [PATCH 12/17] btrfs-progs: free allocated di_args in cmd_start_replace Eric Sandeen
2013-02-25 22:54 ` Eric Sandeen [this message]
2013-02-25 22:54 ` [PATCH 14/17] btrfs-progs: fix mem leak in resolve_root Eric Sandeen
2013-02-26  0:36   ` Shilong Wang
2013-02-26  4:36     ` Eric Sandeen
2013-02-27 13:03       ` David Sterba
2013-02-27 13:12         ` Shilong Wang
2013-02-25 22:54 ` [PATCH 15/17] btrfs-progs: Tidy up resolve_root Eric Sandeen
2013-02-25 22:54 ` [PATCH 16/17] btrfs-progs: fix fd leak in cmd_subvol_set_default Eric Sandeen
2013-02-26 18:46   ` Goffredo Baroncelli
2013-02-26 20:10     ` Eric Sandeen
2013-02-26 21:04       ` Goffredo Baroncelli
2013-02-27 12:38         ` David Sterba
2013-02-25 22:54 ` [PATCH 17/17] btrfs-progs: replace strtok_r with strsep Eric Sandeen
2013-02-26 18:47   ` Goffredo Baroncelli
2013-02-26 20:13     ` Eric Sandeen
2013-02-26 20:20     ` [PATCH 17/17 V2] " Eric Sandeen
2013-02-26 20:40       ` Ilya Dryomov
2013-02-26 20:46         ` Eric Sandeen
2013-02-26 21:07           ` Ilya Dryomov
2013-02-26 21:50             ` [PATCH 17/17 V3] btrfs-progs: initialize save_ptr prior to strtok_r Eric Sandeen
2013-02-27 13:54 ` [PATCH 00/17] btrfs-progs: More misc fixes & cleanups David Sterba

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