linux-kernel - [PATCH v2 1/2] btrfs-progs: Close file descriptor on exit

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Date:	Tue, 25 Sep 2012 10:02:15 +0800
From:	zwu.kernel@...il.com
To:	linux-btrfs@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, jbacik@...ionio.com, dave@...os.cz,
	linuxram@...ux.vnet.ibm.com, Zhi Yong Wu <wuzhy@...ux.vnet.ibm.com>
Subject: [PATCH v2 1/2] btrfs-progs: Close file descriptor on exit

From: Zhi Yong Wu <wuzhy@...ux.vnet.ibm.com>

  Need to close fd on exit.

Signed-off-by: Zhi Yong Wu <wuzhy@...ux.vnet.ibm.com>
---
 cmds-filesystem.c |   10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/cmds-filesystem.c b/cmds-filesystem.c
index b1457de..e62c4fd 100644
--- a/cmds-filesystem.c
+++ b/cmds-filesystem.c
@@ -77,18 +77,23 @@ static int cmd_df(int argc, char **argv)
 	if (ret) {
 		fprintf(stderr, "ERROR: couldn't get space info on '%s' - %s\n",
 			path, strerror(e));
+		close(fd);
 		free(sargs);
 		return ret;
 	}
-	if (!sargs->total_spaces)
+	if (!sargs->total_spaces) {
+		close(fd);
 		return 0;
+	}
 
 	count = sargs->total_spaces;
 
 	sargs = realloc(sargs, sizeof(struct btrfs_ioctl_space_args) +
 			(count * sizeof(struct btrfs_ioctl_space_info)));
-	if (!sargs)
+	if (!sargs) {
+		close(fd);
 		return -ENOMEM;
+	}
 
 	sargs->space_slots = count;
 	sargs->total_spaces = 0;
@@ -148,6 +153,7 @@ static int cmd_df(int argc, char **argv)
 		printf("%s: total=%s, used=%s\n", description, total_bytes,
 		       used_bytes);
 	}
+	close(fd);
 	free(sargs);
 
 	return 0;
-- 
1.7.6.5

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