HID: uhid: Over-ride the default maximum data buffer value with our own

commit 1c5d4221240a233df2440fe75c881465cdf8da07 upstream.

The default maximum data buffer size for this interface is UHID_DATA_MAX
(4k).  When data buffers are being processed, ensure this value is used
when ensuring the sanity, rather than a value between the user provided
value and HID_MAX_BUFFER_SIZE (16k).

Signed-off-by: Lee Jones <lee@kernel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Lee Jones <lee@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/hid/uhid.c b/drivers/hid/uhid.c
index 333b6a769189c548ec81aef2dc61fc22a250f95d..b7efc5c055be16ab9ab35c60371d5d8eb323d04a 100644 (file)
--- a/drivers/hid/uhid.c
+++ b/drivers/hid/uhid.c
@@ -399,6 +399,7 @@ struct hid_ll_driver uhid_hid_driver = {
        .parse = uhid_hid_parse,
        .raw_request = uhid_hid_raw_request,
        .output_report = uhid_hid_output_report,
+       .max_buffer_size = UHID_DATA_MAX,
 };
 EXPORT_SYMBOL_GPL(uhid_hid_driver);