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path: root/drivers/char/hw_random/virtio-rng.c
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Diffstat (limited to 'drivers/char/hw_random/virtio-rng.c')
-rw-r--r--drivers/char/hw_random/virtio-rng.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/char/hw_random/virtio-rng.c b/drivers/char/hw_random/virtio-rng.c
index 723725bbb96b..c8a935034218 100644
--- a/drivers/char/hw_random/virtio-rng.c
+++ b/drivers/char/hw_random/virtio-rng.c
@@ -55,6 +55,7 @@ static void register_buffer(u8 *buf, size_t size)
static int virtio_read(struct hwrng *rng, void *buf, size_t size, bool wait)
{
+ int ret;
if (!busy) {
busy = true;
@@ -65,7 +66,9 @@ static int virtio_read(struct hwrng *rng, void *buf, size_t size, bool wait)
if (!wait)
return 0;
- wait_for_completion(&have_data);
+ ret = wait_for_completion_killable(&have_data);
+ if (ret < 0)
+ return ret;
busy = false;