diff options
| author | Kees Cook <keescook@chromium.org> | 2017-10-05 03:53:24 +0300 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2017-10-11 16:22:15 +0300 |
| commit | 0ee32774aed648854a06bc3fae636f20f5f75a68 (patch) | |
| tree | 50559a1b33950a9f183209d0f51534b70629a7ee /drivers/hid/hid-multitouch.c | |
| parent | 77ede3a014a32746002f7889211f0cecf4803163 (diff) | |
| download | linux-0ee32774aed648854a06bc3fae636f20f5f75a68.tar.xz | |
HID: usbhid: Convert timers to use timer_setup()
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
(introduced by 686fef928bba ("timer: Prepare to change timer callback
argument type")) to pass the timer pointer explicitly. Adds pointer back to
hid_device for multitouch.
[jkosina@suse.cz: extend changelog a little bit as asked for by Benjamin]
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: linux-input@vger.kernel.org
Cc: linux-usb@vger.kernel.org
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-multitouch.c')
| -rw-r--r-- | drivers/hid/hid-multitouch.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c index 9e8c4d2ba11d..8ba95c3af056 100644 --- a/drivers/hid/hid-multitouch.c +++ b/drivers/hid/hid-multitouch.c @@ -112,6 +112,7 @@ struct mt_device { struct mt_slot curdata; /* placeholder of incoming data */ struct mt_class mtclass; /* our mt device class */ struct timer_list release_timer; /* to release sticky fingers */ + struct hid_device *hdev; /* hid_device we're attached to */ struct mt_fields *fields; /* temporary placeholder for storing the multitouch fields */ unsigned long mt_io_flags; /* mt flags (MT_IO_FLAGS_*) */ @@ -1246,10 +1247,10 @@ static void mt_release_contacts(struct hid_device *hid) td->num_received = 0; } -static void mt_expired_timeout(unsigned long arg) +static void mt_expired_timeout(struct timer_list *t) { - struct hid_device *hdev = (void *)arg; - struct mt_device *td = hid_get_drvdata(hdev); + struct mt_device *td = from_timer(td, t, release_timer); + struct hid_device *hdev = td->hdev; /* * An input report came in just before we release the sticky fingers, @@ -1280,6 +1281,7 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id) dev_err(&hdev->dev, "cannot allocate multitouch data\n"); return -ENOMEM; } + td->hdev = hdev; td->mtclass = *mtclass; td->inputmode = -1; td->maxcontact_report_id = -1; @@ -1331,7 +1333,7 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id) */ hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS; - setup_timer(&td->release_timer, mt_expired_timeout, (long)hdev); + timer_setup(&td->release_timer, mt_expired_timeout, 0); ret = hid_parse(hdev); if (ret != 0) |