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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2015-05-21 08:19:54 (GMT) |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2015-05-27 09:51:45 (GMT) |
| commit | 1d9de44e268d880cbe2d0bd3be1ef0661f93fd34 (patch) | |
| tree | 01d76396141709ae0d763eb8a4689b158eb511e7 /drivers/char/random.c | |
| parent | 374d4ad18a0c4bc844dee42b3b43916e5f46608d (diff) | |
| download | linux-1d9de44e268d880cbe2d0bd3be1ef0661f93fd34.tar.xz | |
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>
Diffstat (limited to 'drivers/char/random.c')
| -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 9cd6968..8b8c46b 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -660,7 +660,7 @@ 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); } } |