HID: hidraw: Replace Confusing += Operator with =

Setting of the return value of hidraw_read() uses the += operator when
= is more appropriate.  There is no case where ret can be anything
other than zero when the assignment is made, making = equivalent to
+= and much more clear.

Signed-off-by: Alan Ott <alan@signal11.us>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c
index 468e87b53ed26aadb86ed6b127599ea669a6aa99..66fbcbae53435d0c09d014abdf61fbb6357a851d 100644 (file)
--- a/drivers/hid/hidraw.c
+++ b/drivers/hid/hidraw.c
@@ -91,7 +91,7 @@ static ssize_t hidraw_read(struct file *file, char __user *buffer, size_t count,
                        ret = -EFAULT;
                        goto out;
                }
-               ret += len;
+               ret = len;
 
                kfree(list->buffer[list->tail].value);
                list->tail = (list->tail + 1) & (HIDRAW_BUFFER_SIZE - 1);