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Merge branch 'for-4.20/core' into for-linus

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Fixes and new features for driver core. Highlights:

- maximum global item tag report size gets increased to 256
- improved INPUT_PROP reporting for Digitizer devices
This commit is contained in:
Jiri Kosina 2018-10-23 13:17:27 +02:00
commit d93af50ed6
2 changed files with 16 additions and 5 deletions
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2
drivers/hid/hid-core.c
View File

@ -406,7 +406,7 @@ static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
case HID_GLOBAL_ITEM_TAG_REPORT_SIZE:
parser->global.report_size = item_udata(item);
if (parser->global.report_size > 128) {
if (parser->global.report_size > 256) {
hid_err(parser->device, "invalid report_size %d\n",
parser->global.report_size);
return -1;

19
drivers/hid/hid-input.c
View File

@ -758,6 +758,11 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
break;
case HID_UP_DIGITIZER:
if ((field->application & 0xff) == 0x01) /* Digitizer */
__set_bit(INPUT_PROP_POINTER, input->propbit);
else if ((field->application & 0xff) == 0x02) /* Pen */
__set_bit(INPUT_PROP_DIRECT, input->propbit);
switch (usage->hid & 0xff) {
case 0x00: /* Undefined */
goto ignore;
@ -1516,6 +1521,7 @@ static struct hid_input *hidinput_allocate(struct hid_device *hid,
struct hid_input *hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
struct input_dev *input_dev = input_allocate_device();
const char *suffix = NULL;
size_t suffix_len, name_len;
if (!hidinput || !input_dev)
goto fail;
@ -1559,10 +1565,15 @@ static struct hid_input *hidinput_allocate(struct hid_device *hid,
}
if (suffix) {
hidinput->name = kasprintf(GFP_KERNEL, "%s %s",
hid->name, suffix);
if (!hidinput->name)
goto fail;
name_len = strlen(hid->name);
suffix_len = strlen(suffix);
if ((name_len < suffix_len) ||
strcmp(hid->name + name_len - suffix_len, suffix)) {
hidinput->name = kasprintf(GFP_KERNEL, "%s %s",
hid->name, suffix);
if (!hidinput->name)
goto fail;
}
}
input_set_drvdata(input_dev, hid);