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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-08 04:21:33 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-08 04:21:33 +0000
commit282c335ad1bf4d21fcedff132e19995c24c09adc (patch)
treed24dc7bfbb3a6b4bfd5b46964347ada86f72d751 /drivers/hid/hid-core.c
parentAdding upstream version 4.19.289. (diff)
downloadlinux-upstream.tar.xz
linux-upstream.zip
Adding upstream version 4.19.304.upstream/4.19.304upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--drivers/hid/hid-core.c16
1 files changed, 13 insertions, 3 deletions
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index c8d687f79..dd1d8d0a4 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -701,15 +701,22 @@ static void hid_close_report(struct hid_device *device)
* Free a device structure, all reports, and all fields.
*/
-static void hid_device_release(struct device *dev)
+void hiddev_free(struct kref *ref)
{
- struct hid_device *hid = to_hid_device(dev);
+ struct hid_device *hid = container_of(ref, struct hid_device, ref);
hid_close_report(hid);
kfree(hid->dev_rdesc);
kfree(hid);
}
+static void hid_device_release(struct device *dev)
+{
+ struct hid_device *hid = to_hid_device(dev);
+
+ kref_put(&hid->ref, hiddev_free);
+}
+
/*
* Fetch a report description item from the data stream. We support long
* items, though they are not used yet.
@@ -2259,10 +2266,12 @@ int hid_add_device(struct hid_device *hdev)
hid_warn(hdev, "bad device descriptor (%d)\n", ret);
}
+ hdev->id = atomic_inc_return(&id);
+
/* XXX hack, any other cleaner solution after the driver core
* is converted to allow more than 20 bytes as the device name? */
dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus,
- hdev->vendor, hdev->product, atomic_inc_return(&id));
+ hdev->vendor, hdev->product, hdev->id);
hid_debug_register(hdev, dev_name(&hdev->dev));
ret = device_add(&hdev->dev);
@@ -2305,6 +2314,7 @@ struct hid_device *hid_allocate_device(void)
spin_lock_init(&hdev->debug_list_lock);
sema_init(&hdev->driver_input_lock, 1);
mutex_init(&hdev->ll_open_lock);
+ kref_init(&hdev->ref);
return hdev;
}