diff options
| author | Binoy Jayan <binoy.jayan@linaro.org> | 2017-06-14 12:59:51 +0530 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2017-08-01 13:12:46 +0200 |
| commit | 6f68f0ac72087c29a94d1736324902e3ec07a4ec (patch) | |
| tree | 21eccc6ce85d005d4a669c55aee0638010cf2d02 /include/linux | |
| parent | a9d0683e0b62b46c7a5d0ebd8f642d8f9a4b7b32 (diff) | |
HID: Remove the semaphore driver_lock
The semaphore 'driver_lock' is used as a simple mutex, and also unnecessary as
suggested by Arnd. Hence removing it, as the concurrency between the probe and
remove is already handled in the driver core.
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Binoy Jayan <binoy.jayan@linaro.org>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/hid.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/include/linux/hid.h b/include/linux/hid.h index 5006f9b5d837..142409fc1ff3 100644 --- a/include/linux/hid.h +++ b/include/linux/hid.h @@ -526,7 +526,6 @@ struct hid_device { /* device report descriptor */ struct hid_report_enum report_enum[HID_REPORT_TYPES]; struct work_struct led_work; /* delayed LED worker */ - struct semaphore driver_lock; /* protects the current driver, except during input */ struct semaphore driver_input_lock; /* protects the current driver */ struct device dev; /* device */ struct hid_driver *driver; @@ -551,7 +550,7 @@ struct hid_device { /* device report descriptor */ unsigned int status; /* see STAT flags above */ unsigned claimed; /* Claimed by hidinput, hiddev? */ unsigned quirks; /* Various quirks the device can pull on us */ - bool io_started; /* Protected by driver_lock. If IO has started */ + bool io_started; /* If IO has started */ struct list_head inputs; /* The list of inputs */ void *hiddev; /* The hiddev structure */ |