HID: picoLCD: optimize for inactive debugfs

Matthieu CASTET adjusted picolcd_debug_out_report() to only operate when
there is an active listener on debugfs for events.

His change got lost while splitting hid_picolcd.c, restore it.

Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/hid/hid-picolcd_debugfs.c b/drivers/hid/hid-picolcd_debugfs.c
index 6ef03be352cf..4809aa1bdb9c 100644
--- a/drivers/hid/hid-picolcd_debugfs.c
+++ b/drivers/hid/hid-picolcd_debugfs.c
@@ -402,7 +402,7 @@ void picolcd_debug_out_report(struct picolcd_data *data,
 #define BUFF_SZ 256
 
         /* Avoid unnecessary overhead if debugfs is disabled */
-        if (!hdev->debug_events)
+        if (list_empty(&hdev->debug_list))
                 return;
 
         buff = kmalloc(BUFF_SZ, GFP_ATOMIC);