lttng-modules v0.19-stable: setup_trace_write: Fix recursive locking

[lttng-modules.git] / ltt-ascii.c

diff --git a/ltt-ascii.c b/ltt-ascii.c
index ed3c20d58dfa23df49340b70e0de25bbedc7d0a3..ad128e8bcd4708bd3288f4f0184bd0549ea1b77e 100644 (file)
--- a/ltt-ascii.c
+++ b/ltt-ascii.c
@@ -543,7 +543,7 @@ void ltt_ascii_remove(struct ltt_chan *chan)
         * Wait for every reference to the dentry to be gone,
         * except us.
         */
-       while (atomic_read(&dentry->d_count) != 1)
+       while (ACCESS_ONCE(dentry->d_count) != 1)
                msleep(100);
        dput(dentry);
 }
@@ -568,7 +568,6 @@ EXPORT_SYMBOL_GPL(ltt_ascii_remove_dir);
 __init int ltt_ascii_init(void)
 {
        ltt_ascii_dir_dentry = debugfs_create_dir(LTT_ASCII, get_ltt_root());
-       put_ltt_root();
 
        return ltt_ascii_dir_dentry ? 0 : -EFAULT;
 }
@@ -576,6 +575,7 @@ __init int ltt_ascii_init(void)
 __exit void ltt_ascii_exit(void)
 {
        debugfs_remove(ltt_ascii_dir_dentry);
+       put_ltt_root();
 }
 
 MODULE_LICENSE("GPL and additional rights");