All code for debugfs is ignored when the creation of the batman-adv root directory in debugfs fails. It must also be ignored when the debugfs_create_dir tells us that debugfs is not implemented to prevent possible crashes in the future.
Signed-off-by: Sven Eckelmann <[email protected]> --- drivers/staging/batman-adv/bat_debugfs.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/drivers/staging/batman-adv/bat_debugfs.c b/drivers/staging/batman-adv/bat_debugfs.c index a8fe1c9..fafca9f 100644 --- a/drivers/staging/batman-adv/bat_debugfs.c +++ b/drivers/staging/batman-adv/bat_debugfs.c @@ -88,6 +88,8 @@ static struct bat_debuginfo *mesh_debuginfos[] = { void debugfs_init(void) { bat_debugfs = debugfs_create_dir(DEBUGFS_BAT_SUBDIR, NULL); + if (bat_debugfs == ERR_PTR(-ENODEV)) + bat_debugfs = NULL; } void debugfs_destroy(void) -- 1.7.1
