redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

lib: notifier-error-inject: no need to check return value of debugfs_create functions 

When calling debugfs functions, there is no need to ever check the
return value.  The function can work or not, but the code logic should
never do something different based on this.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20190612153613.GA21239@kroah.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
alistair/sunxi64-5.4-dsi
Greg Kroah-Hartman 2019-06-12 17:36:13 +02:00
parent 1be51474f9
commit 56f3364aba
1 changed files with 1 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
lib/notifier-error-inject.c
View File

@ -59,33 +59,22 @@ struct dentry *notifier_err_inject_init(const char *name, struct dentry *parent,
err_inject->nb.priority = priority;
dir = debugfs_create_dir(name, parent);
if (!dir)
return ERR_PTR(-ENOMEM);
actions_dir = debugfs_create_dir("actions", dir);
if (!actions_dir)
goto fail;
for (action = err_inject->actions; action->name; action++) {
struct dentry *action_dir;
action_dir = debugfs_create_dir(action->name, actions_dir);
if (!action_dir)
goto fail;
/*
* Create debugfs r/w file containing action->error. If
* notifier call chain is called with action->val, it will
* fail with the error code
*/
if (!debugfs_create_errno("error", mode, action_dir,
&action->error))
goto fail;
debugfs_create_errno("error", mode, action_dir, &action->error);
}
return dir;
fail:
debugfs_remove_recursive(dir);
return ERR_PTR(-ENOMEM);
}
EXPORT_SYMBOL_GPL(notifier_err_inject_init);