mailbox: bcm-pdc: PDC driver leaves debugfs files after removal

Minor fix to ensure that debugfs stats pseudo-files are
removed when driver module is unloaded.  Previously, the call to
debugfs_remove_recursive() was never being called since the
directory was not empty, and a seg fault would occur if another
process tried to access these leftover files.

Signed-off-by: Steve Lin <steven.lin1@broadcom.com>
Signed-off-by: Rob Rice <rob.rice@broadcom.com>
Reviewed-by: Andy Gospodarek <gospo@broadcom.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>

1 files changed, 2 insertions, 4 deletions

diff --git a/drivers/mailbox/bcm-pdc-mailbox.c b/drivers/mailbox/bcm-pdc-mailbox.c
index 3b4ebbe81964..c9434a756bf3 100644
--- a/drivers/mailbox/bcm-pdc-mailbox.c
+++ b/drivers/mailbox/bcm-pdc-mailbox.c
@@ -492,10 +492,8 @@ static void pdc_setup_debugfs(struct pdc_state *pdcs)
 
 static void pdc_free_debugfs(void)
 {
-        if (debugfs_dir && simple_empty(debugfs_dir)) {
-                debugfs_remove_recursive(debugfs_dir);
-                debugfs_dir = NULL;
-        }
+        debugfs_remove_recursive(debugfs_dir);
+        debugfs_dir = NULL;
 }
 
 /**