From bd9c35d0e5d442568f22e64066a5e687e54881a4 Mon Sep 17 00:00:00 2001 From: Stefan Achatz Date: Sat, 27 Aug 2011 15:24:48 +0200 Subject: [PATCH] HID: roccat: cleaned up code for Kone and fixed wrong initialization value Introduced function kone_profile_activated() to reduce code duplication. This by the way fixes a wrong initialization value. Also fixes early mutex unlocks. Signed-off-by: Stefan Achatz Signed-off-by: Jiri Kosina --- drivers/hid/hid-roccat-kone.c | 43 ++++++++++++++++++----------------- 1 file changed, 22 insertions(+), 21 deletions(-) diff --git a/drivers/hid/hid-roccat-kone.c b/drivers/hid/hid-roccat-kone.c index 7847a5bb88fb..c931d00c70b9 100644 --- a/drivers/hid/hid-roccat-kone.c +++ b/drivers/hid/hid-roccat-kone.c @@ -37,6 +37,12 @@ static uint profile_numbers[5] = {0, 1, 2, 3, 4}; +static void kone_profile_activated(struct kone_device *kone, uint new_profile) +{ + kone->actual_profile = new_profile; + kone->actual_dpi = kone->profiles[new_profile - 1].startup_dpi; +} + static int kone_receive(struct usb_device *usb_dev, uint usb_command, void *data, uint size) { @@ -294,21 +300,16 @@ static ssize_t kone_sysfs_write_settings(struct file *fp, struct kobject *kobj, if (difference) { retval = kone_set_settings(usb_dev, (struct kone_settings const *)buf); - if (!retval) - memcpy(&kone->settings, buf, - sizeof(struct kone_settings)); - } - mutex_unlock(&kone->kone_lock); + if (retval) { + mutex_unlock(&kone->kone_lock); + return retval; + } - if (retval) - return retval; + memcpy(&kone->settings, buf, sizeof(struct kone_settings)); - /* - * If we get here, treat settings as okay and update actual values - * according to startup_profile - */ - kone->actual_profile = kone->settings.startup_profile; - kone->actual_dpi = kone->profiles[kone->actual_profile - 1].startup_dpi; + kone_profile_activated(kone, kone->settings.startup_profile); + } + mutex_unlock(&kone->kone_lock); return sizeof(struct kone_settings); } @@ -501,6 +502,8 @@ static ssize_t kone_sysfs_set_tcu(struct device *dev, goto exit_no_settings; goto exit_unlock; } + /* calibration resets profile */ + kone_profile_activated(kone, kone->settings.startup_profile); } retval = size; @@ -544,16 +547,15 @@ static ssize_t kone_sysfs_set_startup_profile(struct device *dev, kone_set_settings_checksum(&kone->settings); retval = kone_set_settings(usb_dev, &kone->settings); - - mutex_unlock(&kone->kone_lock); - - if (retval) + if (retval) { + mutex_unlock(&kone->kone_lock); return retval; + } /* changing the startup profile immediately activates this profile */ - kone->actual_profile = new_startup_profile; - kone->actual_dpi = kone->profiles[kone->actual_profile - 1].startup_dpi; + kone_profile_activated(kone, new_startup_profile); + mutex_unlock(&kone->kone_lock); return size; } @@ -665,8 +667,7 @@ static int kone_init_kone_device_struct(struct usb_device *usb_dev, if (retval) return retval; - kone->actual_profile = kone->settings.startup_profile; - kone->actual_dpi = kone->profiles[kone->actual_profile].startup_dpi; + kone_profile_activated(kone, kone->settings.startup_profile); return 0; } -- 2.39.5