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| author | Artem Bityutskiy <artem.bityutskiy@linux.intel.com> | 2012-06-06 16:03:10 +0300 |
|---|---|---|
| committer | Artem Bityutskiy <artem.bityutskiy@linux.intel.com> | 2012-06-07 10:43:54 +0300 |
| commit | 818039c7d597db3b1d30964a8f9489ac42c0642d (patch) | |
| tree | 15a7529f017b818895e3e5ba75df4ef6f415af48 | |
| parent | e9b4cf2094a65a05a831f070e46c554260632330 (diff) | |
| download | linux-818039c7d597db3b1d30964a8f9489ac42c0642d.tar.gz linux-818039c7d597db3b1d30964a8f9489ac42c0642d.tar.xz linux-818039c7d597db3b1d30964a8f9489ac42c0642d.zip | |
UBIFS: fix debugfs-less systems support
Commit "f70b7e5 UBIFS: remove Kconfig debugging option" broke UBIFS and it
refuses to initialize if debugfs (CONFIG_DEBUG_FS) is disabled. I incorrectly
assumed that debugfs files creation function will return success if debugfs
is disabled, but they actually return -ENODEV. This patch fixes the issue.
Reported-by: Paul Parsons <lost.distance@yahoo.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Tested-by: Paul Parsons <lost.distance@yahoo.com>
| -rw-r--r-- | fs/ubifs/debug.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/fs/ubifs/debug.c b/fs/ubifs/debug.c index 685a83756b2b..84a7e6f3c046 100644 --- a/fs/ubifs/debug.c +++ b/fs/ubifs/debug.c @@ -2918,6 +2918,9 @@ int dbg_debugfs_init_fs(struct ubifs_info *c) struct dentry *dent; struct ubifs_debug_info *d = c->dbg; + if (!IS_ENABLED(DEBUG_FS)) + return 0; + n = snprintf(d->dfs_dir_name, UBIFS_DFS_DIR_LEN + 1, UBIFS_DFS_DIR_NAME, c->vi.ubi_num, c->vi.vol_id); if (n == UBIFS_DFS_DIR_LEN) { @@ -3010,7 +3013,8 @@ out: */ void dbg_debugfs_exit_fs(struct ubifs_info *c) { - debugfs_remove_recursive(c->dbg->dfs_dir); + if (IS_ENABLED(DEBUG_FS)) + debugfs_remove_recursive(c->dbg->dfs_dir); } struct ubifs_global_debug_info ubifs_dbg; @@ -3095,6 +3099,9 @@ int dbg_debugfs_init(void) const char *fname; struct dentry *dent; + if (!IS_ENABLED(DEBUG_FS)) + return 0; + fname = "ubifs"; dent = debugfs_create_dir(fname, NULL); if (IS_ERR_OR_NULL(dent)) @@ -3159,7 +3166,8 @@ out: */ void dbg_debugfs_exit(void) { - debugfs_remove_recursive(dfs_rootdir); + if (IS_ENABLED(DEBUG_FS)) + debugfs_remove_recursive(dfs_rootdir); } /** |