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| author | Andrey Smirnov <andrew.smirnov@gmail.com> | 2018-08-16 05:44:09 +0300 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2018-09-05 11:18:00 +0300 |
| commit | f2d3b625dae10cdf14bcfcacb965b02f5c0acc01 (patch) | |
| tree | f4d7a8d013850a5ad07309bf1d70758a41c93477 /drivers/hid/hid-microsoft.c | |
| parent | 7a324b3f0535ceb0f6676fa20ca2a7b6213008cb (diff) | |
| download | linux-f2d3b625dae10cdf14bcfcacb965b02f5c0acc01.tar.xz | |
HID: microsoft: Convert private data to be a proper struct
In order to be able to have more than just an unsigned long worth of
private data, convert the code to allocate and use a dedicated struct.
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: linux-input@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: Pierre-Loup A. Griffais <pgriffais@valvesoftware.com>
Signed-off-by: Juha Kuikka <juha.kuikka@gmail.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-microsoft.c')
| -rw-r--r-- | drivers/hid/hid-microsoft.c | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/drivers/hid/hid-microsoft.c b/drivers/hid/hid-microsoft.c index 72d983626afd..1cbeeeabd2dd 100644 --- a/drivers/hid/hid-microsoft.c +++ b/drivers/hid/hid-microsoft.c @@ -30,10 +30,15 @@ #define MS_DUPLICATE_USAGES BIT(5) #define MS_SURFACE_DIAL BIT(6) +struct ms_data { + unsigned long quirks; +}; + static __u8 *ms_report_fixup(struct hid_device *hdev, __u8 *rdesc, unsigned int *rsize) { - unsigned long quirks = (unsigned long)hid_get_drvdata(hdev); + struct ms_data *ms = hid_get_drvdata(hdev); + unsigned long quirks = ms->quirks; /* * Microsoft Wireless Desktop Receiver (Model 1028) has @@ -159,7 +164,8 @@ static int ms_input_mapping(struct hid_device *hdev, struct hid_input *hi, struct hid_field *field, struct hid_usage *usage, unsigned long **bit, int *max) { - unsigned long quirks = (unsigned long)hid_get_drvdata(hdev); + struct ms_data *ms = hid_get_drvdata(hdev); + unsigned long quirks = ms->quirks; if (quirks & MS_ERGONOMY) { int ret = ms_ergonomy_kb_quirk(hi, usage, bit, max); @@ -185,7 +191,8 @@ static int ms_input_mapped(struct hid_device *hdev, struct hid_input *hi, struct hid_field *field, struct hid_usage *usage, unsigned long **bit, int *max) { - unsigned long quirks = (unsigned long)hid_get_drvdata(hdev); + struct ms_data *ms = hid_get_drvdata(hdev); + unsigned long quirks = ms->quirks; if (quirks & MS_DUPLICATE_USAGES) clear_bit(usage->code, *bit); @@ -196,7 +203,8 @@ static int ms_input_mapped(struct hid_device *hdev, struct hid_input *hi, static int ms_event(struct hid_device *hdev, struct hid_field *field, struct hid_usage *usage, __s32 value) { - unsigned long quirks = (unsigned long)hid_get_drvdata(hdev); + struct ms_data *ms = hid_get_drvdata(hdev); + unsigned long quirks = ms->quirks; struct input_dev *input; if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput || @@ -254,9 +262,16 @@ static int ms_event(struct hid_device *hdev, struct hid_field *field, static int ms_probe(struct hid_device *hdev, const struct hid_device_id *id) { unsigned long quirks = id->driver_data; + struct ms_data *ms; int ret; - hid_set_drvdata(hdev, (void *)quirks); + ms = devm_kzalloc(&hdev->dev, sizeof(*ms), GFP_KERNEL); + if (ms == NULL) + return -ENOMEM; + + ms->quirks = quirks; + + hid_set_drvdata(hdev, ms); if (quirks & MS_NOGET) hdev->quirks |= HID_QUIRK_NOGET; |