HID: allow resizing and replacing report descriptors

Update hid_driver's report_fixup prototype to allow changing report
descriptor size and/or returning completely different report descriptor.
Update existing usage accordingly.

This is to give more freedom in descriptor fixup and to allow having a whole
fixed descriptor in the code for the sake of readability.

Signed-off-by: Nikolai Kondrashov <spbnick@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

1 files changed, 4 insertions, 3 deletions

diff --git a/drivers/hid/hid-ortek.c b/drivers/hid/hid-ortek.c
index aa9a960f73a4..2e79716dca31 100644
--- a/drivers/hid/hid-ortek.c
+++ b/drivers/hid/hid-ortek.c
@@ -19,14 +19,15 @@
 
 #include "hid-ids.h"
 
-static void ortek_report_fixup(struct hid_device *hdev, __u8 *rdesc,
-                unsigned int rsize)
+static __u8 *ortek_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+                unsigned int *rsize)
 {
-        if (rsize >= 56 && rdesc[54] == 0x25 && rdesc[55] == 0x01) {
+        if (*rsize >= 56 && rdesc[54] == 0x25 && rdesc[55] == 0x01) {
                 dev_info(&hdev->dev, "Fixing up Ortek WKB-2000 "
                                 "report descriptor.\n");
                 rdesc[55] = 0x92;
         }
+        return rdesc;
 }
 
 static const struct hid_device_id ortek_devices[] = {