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* [PATCH] btrfs: trivial fix, a potential memory leak in btrfs_parse_early_options()
@ 2011-09-13  6:06 Jeff Liu
  2011-09-14  5:40 ` Li Zefan
  0 siblings, 1 reply; 6+ messages in thread
From: Jeff Liu @ 2011-09-13  6:06 UTC (permalink / raw)
  To: linux-btrfs

Signed-off-by: Jie Liu <jeff.liu@oracle.com>

---
  fs/btrfs/super.c |   10 ++++++++--
  1 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 15634d4..16f31e1 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -406,7 +406,7 @@ static int btrfs_parse_early_options(const char 
*options, fmode_t flags,
          u64 *subvol_rootid, struct btrfs_fs_devices **fs_devices)
  {
      substring_t args[MAX_OPT_ARGS];
-    char *opts, *orig, *p;
+    char *device_name, *opts, *orig, *p;
      int error = 0;
      int intarg;

@@ -457,8 +457,14 @@ static int btrfs_parse_early_options(const char 
*options, fmode_t flags,
              }
              break;
          case Opt_device:
-            error = btrfs_scan_one_device(match_strdup(&args[0]),
+            device_name = match_strdup(&args[0]);
+            if (!device_name) {
+                error = -ENOMEM;
+                goto out_free_opts;
+            }
+            error = btrfs_scan_one_device(device_name,
                      flags, holder, fs_devices);
+            kfree(device_name);
              if (error)
                  goto out_free_opts;
              break;
-- 
1.7.4.1


^ permalink raw reply related	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2011-09-15 18:07 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2011-09-13  6:06 [PATCH] btrfs: trivial fix, a potential memory leak in btrfs_parse_early_options() Jeff Liu
2011-09-14  5:40 ` Li Zefan
2011-09-14  6:11   ` Jeff Liu
2011-09-15 12:05     ` David Sterba
2011-09-15 15:01       ` [PATCH V2] " Jeff Liu
2011-09-15 18:07         ` David Sterba

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