HID: hidraw: add proper error handling to raw event reporting

If kmemdup() in hidraw_report_event() fails, we are not propagating
this fact properly.

Let hidraw_report_event() and hid_report_raw_event() return an error
value to the caller.

Reported-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

2 files changed, 3 insertions, 3 deletions

diff --git a/include/linux/hid.h b/include/linux/hid.h
index 3a95da60fd3e..58b3857dc51c 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -896,7 +896,7 @@ static inline int hid_hw_power(struct hid_device *hdev, int level)
         return hdev->ll_driver->power ? hdev->ll_driver->power(hdev, level) : 0;
 }
 
-void hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
+int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
                 int interrupt);
 
 extern int hid_generic_init(void);
diff --git a/include/linux/hidraw.h b/include/linux/hidraw.h
index 4b88e697c4e9..9cdc9b67ff49 100644
--- a/include/linux/hidraw.h
+++ b/include/linux/hidraw.h
@@ -76,13 +76,13 @@ struct hidraw_list {
 #ifdef CONFIG_HIDRAW
 int hidraw_init(void);
 void hidraw_exit(void);
-void hidraw_report_event(struct hid_device *, u8 *, int);
+int hidraw_report_event(struct hid_device *, u8 *, int);
 int hidraw_connect(struct hid_device *);
 void hidraw_disconnect(struct hid_device *);
 #else
 static inline int hidraw_init(void) { return 0; }
 static inline void hidraw_exit(void) { }
-static inline void hidraw_report_event(struct hid_device *hid, u8 *data, int len) { }
+static inline int hidraw_report_event(struct hid_device *hid, u8 *data, int len) { }
 static inline int hidraw_connect(struct hid_device *hid) { return -1; }
 static inline void hidraw_disconnect(struct hid_device *hid) { }
 #endif