| Message ID | 20231104111743.14668-4-hdegoede@redhat.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | HID: i2c-hid: Rework wait for reset to match Windows | expand |
Hi, On Sat, Nov 4, 2023 at 4:17 AM Hans de Goede <hdegoede@redhat.com> wrote: > > Switch i2c_hid_parse() to goto style error handling. > > This is a preparation patch for removing the need for > I2C_HID_QUIRK_NO_IRQ_AFTER_RESET by making i2c-hid behave > more like Windows. > > Note this changes the descriptor read error path to propagate > the actual i2c_hid_read_register() error code (which is always > negative) instead of hardcoding a -EIO return. > > Signed-off-by: Hans de Goede <hdegoede@redhat.com> > --- > drivers/hid/i2c-hid/i2c-hid-core.c | 14 ++++++-------- > 1 file changed, 6 insertions(+), 8 deletions(-) Reviewed-by: Douglas Anderson <dianders@chromium.org>
diff --git a/drivers/hid/i2c-hid/i2c-hid-core.c b/drivers/hid/i2c-hid/i2c-hid-core.c index 8105b84fb539..f029ddce4766 100644 --- a/drivers/hid/i2c-hid/i2c-hid-core.c +++ b/drivers/hid/i2c-hid/i2c-hid-core.c @@ -776,23 +776,21 @@ static int i2c_hid_parse(struct hid_device *hid) rdesc, rsize); if (ret) { hid_err(hid, "reading report descriptor failed\n"); - kfree(rdesc); - return -EIO; + goto out; } } i2c_hid_dbg(ihid, "Report Descriptor: %*ph\n", rsize, rdesc); ret = hid_parse_report(hid, rdesc, rsize); + if (ret) + dbg_hid("parsing report descriptor failed\n"); + +out: if (!use_override) kfree(rdesc); - if (ret) { - dbg_hid("parsing report descriptor failed\n"); - return ret; - } - - return 0; + return ret; } static int i2c_hid_start(struct hid_device *hid)
Switch i2c_hid_parse() to goto style error handling. This is a preparation patch for removing the need for I2C_HID_QUIRK_NO_IRQ_AFTER_RESET by making i2c-hid behave more like Windows. Note this changes the descriptor read error path to propagate the actual i2c_hid_read_register() error code (which is always negative) instead of hardcoding a -EIO return. Signed-off-by: Hans de Goede <hdegoede@redhat.com> --- drivers/hid/i2c-hid/i2c-hid-core.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-)