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>
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@ -91,7 +91,7 @@ static ssize_t hidraw_read(struct file *file, char __user *buffer, size_t count,
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ret = -EFAULT;
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goto out;
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}
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ret += len;
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ret = len;
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kfree(list->buffer[list->tail].value);
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list->tail = (list->tail + 1) & (HIDRAW_BUFFER_SIZE - 1);
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