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| author | Benjamin Tissoires <benjamin.tissoires@redhat.com> | 2018-05-25 14:51:06 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2018-05-30 08:55:33 +0200 |
| commit | c94ba060112ad24fa29b2bdafc0c32173e1f1959 (patch) | |
| tree | 616b4b5a3f5d2174ce03ea6db4b1727a0f49f4bd /drivers/hid/hid-rmi.c | |
| parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jik... (diff) | |
| download | linux-c94ba060112ad24fa29b2bdafc0c32173e1f1959.tar.xz linux-c94ba060112ad24fa29b2bdafc0c32173e1f1959.zip | |
HID: rmi: use HID_QUIRK_NO_INPUT_SYNC
When we receive a RMI4 report, we should not unconditionally send an
input_sync event. Instead, we should let the rmi4 transport layer do it
for us.
This fixes a situation where we might receive X in a report and the rest
in a subsequent one. And this messes up user space.
Link: https://bugs.freedesktop.org/show_bug.cgi?id=100436
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Tested-by: Oscar Morante <spacepluk@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-rmi.c')
| -rw-r--r-- | drivers/hid/hid-rmi.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/hid/hid-rmi.c b/drivers/hid/hid-rmi.c index 9c9362149641..9e33165250a3 100644 --- a/drivers/hid/hid-rmi.c +++ b/drivers/hid/hid-rmi.c @@ -413,6 +413,24 @@ static int rmi_event(struct hid_device *hdev, struct hid_field *field, return 0; } +static void rmi_report(struct hid_device *hid, struct hid_report *report) +{ + struct hid_field *field = report->field[0]; + + if (!(hid->claimed & HID_CLAIMED_INPUT)) + return; + + switch (report->id) { + case RMI_READ_DATA_REPORT_ID: + /* fall-through */ + case RMI_ATTN_REPORT_ID: + return; + } + + if (field && field->hidinput && field->hidinput->input) + input_sync(field->hidinput->input); +} + #ifdef CONFIG_PM static int rmi_suspend(struct hid_device *hdev, pm_message_t message) { @@ -637,6 +655,7 @@ static int rmi_probe(struct hid_device *hdev, const struct hid_device_id *id) hid_set_drvdata(hdev, data); hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS; + hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC; ret = hid_parse(hdev); if (ret) { @@ -744,6 +763,7 @@ static struct hid_driver rmi_driver = { .remove = rmi_remove, .event = rmi_event, .raw_event = rmi_raw_event, + .report = rmi_report, .input_mapping = rmi_input_mapping, .input_configured = rmi_input_configured, #ifdef CONFIG_PM |