diff options
| -rw-r--r-- | drivers/hid/hid-multitouch.c | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c index 099a7ada13c7..55551746d235 100644 --- a/drivers/hid/hid-multitouch.c +++ b/drivers/hid/hid-multitouch.c @@ -44,6 +44,7 @@ #include <linux/slab.h> #include <linux/usb.h> #include <linux/input/mt.h> +#include <linux/string.h> MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>"); @@ -260,6 +261,14 @@ static struct mt_class mt_classes[] = { { } }; +static void mt_free_input_name(struct hid_input *hi) +{ + struct hid_device *hdev = hi->report->device; + + if (hi->input->name != hdev->name) + kfree(hi->input->name); +} + static ssize_t mt_show_quirks(struct device *dev, struct device_attribute *attr, char *buf) @@ -403,6 +412,12 @@ static void mt_pen_report(struct hid_device *hid, struct hid_report *report) static void mt_pen_input_configured(struct hid_device *hdev, struct hid_input *hi) { + char *name = kzalloc(strlen(hi->input->name) + 5, GFP_KERNEL); + if (name) { + sprintf(name, "%s Pen", hi->input->name); + mt_free_input_name(hi); + hi->input->name = name; + } } static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi, @@ -903,6 +918,10 @@ static void mt_post_parse(struct mt_device *td) static void mt_input_configured(struct hid_device *hdev, struct hid_input *hi) { struct mt_device *td = hid_get_drvdata(hdev); + char *name = kstrdup(hdev->name, GFP_KERNEL); + + if (name) + hi->input->name = name; if (hi->report->id == td->mt_report_id) mt_touch_input_configured(hdev, hi); @@ -916,6 +935,7 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id) int ret, i; struct mt_device *td; struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */ + struct hid_input *hi; for (i = 0; mt_classes[i].name ; i++) { if (id->driver_data == mt_classes[i].name) { @@ -966,7 +986,7 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id) ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); if (ret) - goto fail; + goto hid_fail; ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group); @@ -978,6 +998,9 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id) return 0; +hid_fail: + list_for_each_entry(hi, &hdev->inputs, list) + mt_free_input_name(hi); fail: kfree(td->fields); kfree(td); @@ -1007,8 +1030,14 @@ static int mt_resume(struct hid_device *hdev) static void mt_remove(struct hid_device *hdev) { struct mt_device *td = hid_get_drvdata(hdev); + struct hid_input *hi; + sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group); hid_hw_stop(hdev); + + list_for_each_entry(hi, &hdev->inputs, list) + mt_free_input_name(hi); + kfree(td); hid_set_drvdata(hdev, NULL); } |