diff options
| author | Herbert Xu <herbert@gondor.apana.org.au> | 2015-05-21 16:19:54 +0800 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-04-11 10:59:05 +0200 |
| commit | ff69231cd728b76d201ca685ccaf5a943de682cb (patch) | |
| tree | 43d2ed6d80cb1b698f705b3deaa40e44c24cf432 | |
| parent | 280a1403ce402e90c40af2389af2a5c21d4bfdfd (diff) | |
random: Wake up all getrandom(2) callers when pool is ready
If more than one application invokes getrandom(2) before the pool
is ready, then all bar one will be stuck forever because we use
wake_up_interruptible which wakes up a single task.
This patch replaces it with wake_up_all.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | drivers/char/random.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/char/random.c b/drivers/char/random.c index 29db712b1..91ecb29b1 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -664,7 +664,7 @@ retry: r->entropy_total = 0; if (r == &nonblocking_pool) { prandom_reseed_late(); - wake_up_interruptible(&urandom_init_wait); + wake_up_all(&urandom_init_wait); pr_notice("random: %s pool is initialized\n", r->name); } } |