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| author | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2011-04-01 09:16:17 +0200 |
|---|---|---|
| committer | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2011-04-05 09:46:01 +0200 |
| commit | 95169535113073993a3ed97ecc21831657f42a80 (patch) | |
| tree | 7f118921eb0d46effe0f9bd4e4d766ead16bd663 /fs/ubifs/debug.c | |
| parent | UBIFS: unify error path dbg_debugfs_init_fs (diff) | |
| download | linux-95169535113073993a3ed97ecc21831657f42a80.tar.xz linux-95169535113073993a3ed97ecc21831657f42a80.zip | |
UBIFS: fix error path in dbg_debugfs_init_fs
The debug interface is substandard and on error returns either
NULL or an error code packed in the pointer. So using "IS_ERR"
for the pointers returned by debugfs function is incorrect.
Instead, we should use IS_ERR_OR_NULL.
This path is an improved vestion of the original patch from
Phil Carmody.
Reported-by: Phil Carmody <ext-phil.2.carmody@nokia.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Acked-by: Phil Carmody <ext-phil.2.carmody@nokia.com>
Diffstat (limited to 'fs/ubifs/debug.c')
| -rw-r--r-- | fs/ubifs/debug.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/fs/ubifs/debug.c b/fs/ubifs/debug.c index 304cc6e1c84b..645737769c98 100644 --- a/fs/ubifs/debug.c +++ b/fs/ubifs/debug.c @@ -2808,25 +2808,25 @@ int dbg_debugfs_init_fs(struct ubifs_info *c) sprintf(d->dfs_dir_name, "ubi%d_%d", c->vi.ubi_num, c->vi.vol_id); fname = d->dfs_dir_name; dent = debugfs_create_dir(fname, dfs_rootdir); - if (IS_ERR(dent)) + if (IS_ERR_OR_NULL(dent)) goto out; d->dfs_dir = dent; fname = "dump_lprops"; dent = debugfs_create_file(fname, S_IWUSR, d->dfs_dir, c, &dfs_fops); - if (IS_ERR(dent)) + if (IS_ERR_OR_NULL(dent)) goto out_remove; d->dfs_dump_lprops = dent; fname = "dump_budg"; dent = debugfs_create_file(fname, S_IWUSR, d->dfs_dir, c, &dfs_fops); - if (IS_ERR(dent)) + if (IS_ERR_OR_NULL(dent)) goto out_remove; d->dfs_dump_budg = dent; fname = "dump_tnc"; dent = debugfs_create_file(fname, S_IWUSR, d->dfs_dir, c, &dfs_fops); - if (IS_ERR(dent)) + if (IS_ERR_OR_NULL(dent)) goto out_remove; d->dfs_dump_tnc = dent; @@ -2835,7 +2835,7 @@ int dbg_debugfs_init_fs(struct ubifs_info *c) out_remove: debugfs_remove_recursive(d->dfs_dir); out: - err = PTR_ERR(dent); + err = dent ? PTR_ERR(dent) : -ENODEV; ubifs_err("cannot create \"%s\" debugfs directory, error %d\n", fname, err); return err; |