From c8de9dbb35d3e4efce2bce513192f34ca962d8c0 Mon Sep 17 00:00:00 2001 From: Frank Praznik Date: Thu, 20 Feb 2014 11:36:01 -0500 Subject: [PATCH] HID: sony: Fix work queue issues Only initialize force feedback for devices that actually support it (Sixaxis and Dualshock 4) to prevent calls to schedule_work() with an uninitialized work queue. Move the cancel_work_sync() call out of sony_destroy_ff() since the state worker is used for the LEDs even when force-feedback is disabled. Remove the sony_destroy_ff() function since it is no longer used. Signed-off-by: Frank Praznik Reviewed-by: David Herrmann Signed-off-by: Jiri Kosina --- drivers/hid/hid-sony.c | 28 ++++++++++++++-------------- 1 file changed, 14 insertions(+), 14 deletions(-) diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c index 26992e15d0e2..a51a9c0636be 100644 --- a/drivers/hid/hid-sony.c +++ b/drivers/hid/hid-sony.c @@ -51,6 +51,7 @@ #define SONY_LED_SUPPORT (SIXAXIS_CONTROLLER | BUZZ_CONTROLLER |\ DUALSHOCK4_CONTROLLER) #define SONY_BATTERY_SUPPORT (SIXAXIS_CONTROLLER | DUALSHOCK4_CONTROLLER) +#define SONY_FF_SUPPORT (SIXAXIS_CONTROLLER | DUALSHOCK4_CONTROLLER) #define MAX_LEDS 4 @@ -729,6 +730,7 @@ struct sony_sc { __u8 right; #endif + __u8 worker_initialized; __u8 cable_state; __u8 battery_charging; __u8 battery_capacity; @@ -1367,22 +1369,12 @@ static int sony_init_ff(struct hid_device *hdev) return input_ff_create_memless(input_dev, NULL, sony_play_effect); } -static void sony_destroy_ff(struct hid_device *hdev) -{ - struct sony_sc *sc = hid_get_drvdata(hdev); - - cancel_work_sync(&sc->state_worker); -} - #else static int sony_init_ff(struct hid_device *hdev) { return 0; } -static void sony_destroy_ff(struct hid_device *hdev) -{ -} #endif static int sony_battery_get_property(struct power_supply *psy, @@ -1535,9 +1527,11 @@ static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id) if (sc->quirks & SIXAXIS_CONTROLLER_USB) { hdev->hid_output_raw_report = sixaxis_usb_output_raw_report; ret = sixaxis_set_operational_usb(hdev); + sc->worker_initialized = 1; INIT_WORK(&sc->state_worker, sixaxis_state_worker); } else if (sc->quirks & SIXAXIS_CONTROLLER_BT) { ret = sixaxis_set_operational_bt(hdev); + sc->worker_initialized = 1; INIT_WORK(&sc->state_worker, sixaxis_state_worker); } else if (sc->quirks & DUALSHOCK4_CONTROLLER) { if (sc->quirks & DUALSHOCK4_CONTROLLER_BT) { @@ -1555,6 +1549,7 @@ static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id) if (ret < 0) goto err_stop; + sc->worker_initialized = 1; INIT_WORK(&sc->state_worker, dualshock4_state_worker); } else { ret = 0; @@ -1582,9 +1577,11 @@ static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id) } } - ret = sony_init_ff(hdev); - if (ret < 0) - goto err_close; + if (sc->quirks & SONY_FF_SUPPORT) { + ret = sony_init_ff(hdev); + if (ret < 0) + goto err_close; + } return 0; err_close: @@ -1594,6 +1591,8 @@ err_stop: sony_leds_remove(hdev); if (sc->quirks & SONY_BATTERY_SUPPORT) sony_battery_remove(sc); + if (sc->worker_initialized) + cancel_work_sync(&sc->state_worker); hid_hw_stop(hdev); return ret; } @@ -1610,7 +1609,8 @@ static void sony_remove(struct hid_device *hdev) sony_battery_remove(sc); } - sony_destroy_ff(hdev); + if (sc->worker_initialized) + cancel_work_sync(&sc->state_worker); hid_hw_stop(hdev); } -- 2.20.1