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 a crash during the unload of the module.

Signed-off-by: Sven Eckelmann sven.eckelmann@gmx.de --- Must be applied in both maint and trunk.

batman-adv-kernelland/bat_debugfs.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/batman-adv-kernelland/bat_debugfs.c b/batman-adv-kernelland/bat_debugfs.c index cf2545a..b8081e3 100644 --- a/batman-adv-kernelland/bat_debugfs.c +++ b/batman-adv-kernelland/bat_debugfs.c @@ -101,6 +101,8 @@ 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)