From ff69231cd728b76d201ca685ccaf5a943de682cb Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Thu, 21 May 2015 16:19:54 +0800 Subject: 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 --- drivers/char/random.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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); } } -- cgit v1.2.3