tree c3d58b988a3b833d30379eaa51ed4c7d2c59253e
parent 35a490a35c32d92dc90a8f1951b22310c086e9e8
author Jason A. Donenfeld <Jason@zx2c4.com> 1642441382 +0100
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1656150306 +0200

random: simplify arithmetic function flow in account()

commit a254a0e4093fce8c832414a83940736067eed515 upstream.

Now that have_bytes is never modified, we can simplify this function.
First, we move the check for negative entropy_count to be first. That
ensures that subsequent reads of this will be non-negative. Then,
have_bytes and ibytes can be folded into their one use site in the
min_t() function.

Suggested-by: Dominik Brodowski <linux@dominikbrodowski.net>
Reviewed-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>