3 files changed, 17 insertions, 4 deletions

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index a7550bb30836..2629d5240d63 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -2145,8 +2145,13 @@ static const struct hid_device_id hid_mouse_ignore_list[] = {
         { }
 };
 
-static bool hid_ignore(struct hid_device *hdev)
+bool hid_ignore(struct hid_device *hdev)
 {
+        if (hdev->quirks & HID_QUIRK_NO_IGNORE)
+                return false;
+        if (hdev->quirks & HID_QUIRK_IGNORE)
+                return true;
+
         switch (hdev->vendor) {
         case USB_VENDOR_ID_CODEMERCS:
                 /* ignore all Code Mercenaries IOWarrior devices */
@@ -2201,6 +2206,7 @@ static bool hid_ignore(struct hid_device *hdev)
 
         return !!hid_match_id(hdev, hid_ignore_list);
 }
+EXPORT_SYMBOL_GPL(hid_ignore);
 
 int hid_add_device(struct hid_device *hdev)
 {
@@ -2212,8 +2218,7 @@ int hid_add_device(struct hid_device *hdev)
 
         /* we need to kill them here, otherwise they will stay allocated to
          * wait for coming driver */
-        if (!(hdev->quirks & HID_QUIRK_NO_IGNORE)
-            && (hid_ignore(hdev) || (hdev->quirks & HID_QUIRK_IGNORE)))
+        if (hid_ignore(hdev))
                 return -ENODEV;
 
         /*
diff --git a/include/linux/hid.h b/include/linux/hid.h
index 7e1f37db7582..abce7eb4f258 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -721,6 +721,7 @@ struct hid_ll_driver {
 
 extern int hid_debug;
 
+extern bool hid_ignore(struct hid_device *);
 extern int hid_add_device(struct hid_device *);
 extern void hid_destroy_device(struct hid_device *);
 
diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c
index ccd985da6518..1f4a32bb2971 100644
--- a/net/bluetooth/hidp/core.c
+++ b/net/bluetooth/hidp/core.c
@@ -941,6 +941,13 @@ static int hidp_setup_hid(struct hidp_session *session,
         hid->hid_get_raw_report = hidp_get_raw_report;
         hid->hid_output_raw_report = hidp_output_raw_report;
 
+        /* True if device is blacklisted in drivers/hid/hid-core.c */
+        if (hid_ignore(hid)) {
+                hid_destroy_device(session->hid);
+                session->hid = NULL;
+                return -ENODEV;
+        }
+
         return 0;
 
 fault:
@@ -1013,7 +1020,7 @@ int hidp_add_connection(struct hidp_connadd_req *req, struct socket *ctrl_sock,
 
         if (req->rd_size > 0) {
                 err = hidp_setup_hid(session, req);
-                if (err)
+                if (err && err != -ENODEV)
                         goto purge;
         }