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authorPeter Wu <peter@lekensteyn.nl>2014-12-11 13:51:17 +0100
committerJiri Kosina <jkosina@suse.cz>2014-12-11 23:10:00 +0100
commit02cc097e62d51bf6e5cb4209ca90d9bf68e358b5 (patch)
tree6d375fc4b1fa942a10b22f6a3a039fd9f7cf64d2
parent552f12eb68440a0328dc9929066f6d0321a75874 (diff)
downloadlinux-02cc097e62d51bf6e5cb4209ca90d9bf68e358b5.tar.gz
HID: logitech-hidpp: do not return the name length
We do not make any use of the actual name length get through hidpp_get_device_name(). Original patch by Benjamin Tissoires, this patch also replaces a (now) unnecessary goto by return NULL. Signed-off-by: Peter Wu <peter@lekensteyn.nl> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
-rw-r--r--drivers/hid/hid-logitech-hidpp.c19
1 files changed, 6 insertions, 13 deletions
diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c
index 1a6395d0c2bd..5066df8afee5 100644
--- a/drivers/hid/hid-logitech-hidpp.c
+++ b/drivers/hid/hid-logitech-hidpp.c
@@ -461,7 +461,7 @@ static int hidpp_devicenametype_get_device_name(struct hidpp_device *hidpp,
return count;
}
-static char *hidpp_get_device_name(struct hidpp_device *hidpp, u8 *name_length)
+static char *hidpp_get_device_name(struct hidpp_device *hidpp)
{
u8 feature_type;
u8 feature_index;
@@ -473,28 +473,23 @@ static char *hidpp_get_device_name(struct hidpp_device *hidpp, u8 *name_length)
ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_GET_DEVICE_NAME_TYPE,
&feature_index, &feature_type);
if (ret)
- goto out_err;
+ return NULL;
ret = hidpp_devicenametype_get_count(hidpp, feature_index,
&__name_length);
if (ret)
- goto out_err;
+ return NULL;
name = kzalloc(__name_length + 1, GFP_KERNEL);
if (!name)
- goto out_err;
+ return NULL;
- *name_length = __name_length + 1;
while (index < __name_length)
index += hidpp_devicenametype_get_device_name(hidpp,
feature_index, index, name + index,
__name_length - index);
return name;
-
-out_err:
- *name_length = 0;
- return NULL;
}
/* -------------------------------------------------------------------------- */
@@ -989,7 +984,6 @@ static void hidpp_overwrite_name(struct hid_device *hdev, bool use_unifying)
{
struct hidpp_device *hidpp = hid_get_drvdata(hdev);
char *name;
- u8 name_length;
if (use_unifying)
/*
@@ -999,7 +993,7 @@ static void hidpp_overwrite_name(struct hid_device *hdev, bool use_unifying)
*/
name = hidpp_get_unifying_name(hidpp);
else
- name = hidpp_get_device_name(hidpp, &name_length);
+ name = hidpp_get_device_name(hidpp);
if (!name)
hid_err(hdev, "unable to retrieve the name of the device");
@@ -1053,7 +1047,6 @@ static void hidpp_connect_event(struct hidpp_device *hidpp)
bool connected = atomic_read(&hidpp->connected);
struct input_dev *input;
char *name, *devm_name;
- u8 name_length;
if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP)
wtp_connect(hdev, connected);
@@ -1080,7 +1073,7 @@ static void hidpp_connect_event(struct hidpp_device *hidpp)
return;
}
- name = hidpp_get_device_name(hidpp, &name_length);
+ name = hidpp_get_device_name(hidpp);
if (!name) {
hid_err(hdev, "unable to retrieve the name of the device");
} else {