input: mt: Collect slots initialization code

The MT slots devices all follow the same initialization pattern
of creating slots and hinting about buffer size. Let drivers call
an initialization function instead, and make sure it can be called
repeatedly without side effects.

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>

1 files changed, 1 insertions, 4 deletions

diff --git a/drivers/hid/hid-3m-pct.c b/drivers/hid/hid-3m-pct.c
index 18575a4e0d63..ea475964d05a 100644
--- a/drivers/hid/hid-3m-pct.c
+++ b/drivers/hid/hid-3m-pct.c
@@ -29,7 +29,6 @@ MODULE_LICENSE("GPL");
 
 #define MAX_SLOTS               60
 #define MAX_TRKID               USHRT_MAX
-#define MAX_EVENTS              360
 
 /* estimated signal-to-noise ratios */
 #define SN_MOVE                 2048
@@ -123,9 +122,7 @@ static int mmm_input_mapping(struct hid_device *hdev, struct hid_input *hi,
                                         EV_ABS, ABS_MT_TRACKING_ID);
                         input_set_abs_params(hi->input, ABS_MT_TRACKING_ID,
                                              0, MAX_TRKID, 0, 0);
-                        if (!hi->input->mt)
-                                input_mt_create_slots(hi->input, MAX_SLOTS);
-                        input_set_events_per_packet(hi->input, MAX_EVENTS);
+                        input_mt_init_slots(hi->input, MAX_SLOTS);
                         return 1;
                 }
                 /* let hid-input decide for the others */