random: make consistent use of buf and len
commit a1940263 upstream. The current code was a mix of "nbytes", "count", "size", "buffer", "in", and so forth. Instead, let's clean this up by naming input parameters "buf" (or "ubuf") and "len", so that you always understand that you're reading this variety of function argument. Signed-off-by:Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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