HID: Increase maximum report size allowed by hid_field_extract()

Commit 71f6fa90a353 ("HID: increase maximum global item tag report size
to 256") increases the max report size from 128 to 256.

We also need to update the report size in hid_field_extract() otherwise
it complains and truncates now valid report size:
[ 406.165461] hid-sensor-hub 001F:8086:22D8.0002: hid_field_extract() called with n (192) > 32! (kworker/5:1)

BugLink: https://bugs.launchpad.net/bugs/1818547
Fixes: 71f6fa90a353 ("HID: increase maximum global item tag report size to 256")
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 9993b692598fb84d1700e26ef7f97856ff842955..860e21ec6a492a35392f2b47146f5e0a811c1068 100644 (file)
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1301,10 +1301,10 @@ static u32 __extract(u8 *report, unsigned offset, int n)
 u32 hid_field_extract(const struct hid_device *hid, u8 *report,
                        unsigned offset, unsigned n)
 {
-       if (n > 32) {
-               hid_warn(hid, "hid_field_extract() called with n (%d) > 32! (%s)\n",
+       if (n > 256) {
+               hid_warn(hid, "hid_field_extract() called with n (%d) > 256! (%s)\n",
                         n, current->comm);
-               n = 32;
+               n = 256;
        }
 
        return __extract(report, offset, n);