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authorStefan Achatz <erazor_de@users.sourceforge.net>2011-08-27 17:24:48 +0400
committerJiri Kosina <jkosina@suse.cz>2011-09-07 15:38:28 +0400
commitbd9c35d0e5d442568f22e64066a5e687e54881a4 (patch)
treea1cfb7c98f0e3a4339b81a6821fd419027e267c9 /drivers/hid/hid-roccat-kone.c
parent6b9a57b9fb8194e00d49779bd0d1130844db6a84 (diff)
downloadlinux-bd9c35d0e5d442568f22e64066a5e687e54881a4.tar.xz
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 <erazor_de@users.sourceforge.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-roccat-kone.c')
-rw-r--r--drivers/hid/hid-roccat-kone.c43
1 files 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;
}