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UPSTREAM: random: Don't wake crng_init_wait when crng_init == 1

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crng_init_wait is only used to wayt for crng_init to be set to 2, so
there's no point to waking it when crng_init is set to 1.  Remove the
unnecessary wake_up_interruptible() call.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Link: https://lore.kernel.org/r/6fbc0bfcbfc1fa2c76fd574f5b6f552b11be7fde.1577088521.git.luto@kernel.org
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
(cherry picked from commit 4c8d062186d9923c09488716b2fb1b829b5b8006)
Signed-off-by: Mark Salyzyn <salyzyn@google.com>
Bug: 148665638
Change-Id: I472e05f72ffce40683aa187aaf0870af39007ac8
This commit is contained in:
Andy Lutomirski 2019-12-23 00:20:44 -08:00 committed by Mark Salyzyn
parent 4111ca6a8f
commit 433601243f
1 changed files with 0 additions and 1 deletions
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drivers/char/random.c
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@ -946,7 +946,6 @@ static int crng_fast_load(const char *cp, size_t len)
if (crng_init_cnt >= CRNG_INIT_CNT_THRESH) {
invalidate_batched_entropy();
crng_init = 1;
wake_up_interruptible(&crng_init_wait);
pr_notice("random: fast init done\n");
}
return 1;