From: Sven Eckelmann <sven.eckelmann@xxxxxx>
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 <sven.eckelmann@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
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
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