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Message-Id: <1389753371-26469-4-git-send-email-rusty@rustcorp.com.au> Date: Wed, 15 Jan 2014 13:06:09 +1030 From: Rusty Russell <rusty@...tcorp.com.au> To: linux-kernel@...r.kernel.org Cc: Heinz Graalfs <graalfs@...ux.vnet.ibm.com>, Rusty Russell <rusty@...tcorp.com.au> Subject: [PATCH 4/6] virtio-rng: don't crash if virtqueue is broken. A bad implementation of virtio might cause us to mark the virtqueue broken: we'll dev_err() in that case, and the device is useless, but let's not BUG(). Signed-off-by: Rusty Russell <rusty@...tcorp.com.au> --- drivers/char/hw_random/virtio-rng.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/char/hw_random/virtio-rng.c b/drivers/char/hw_random/virtio-rng.c index c12398d1517c..2ce0e225e58c 100644 --- a/drivers/char/hw_random/virtio-rng.c +++ b/drivers/char/hw_random/virtio-rng.c @@ -47,8 +47,7 @@ static void register_buffer(u8 *buf, size_t size) sg_init_one(&sg, buf, size); /* There should always be room for one buffer. */ - if (virtqueue_add_inbuf(vq, &sg, 1, buf, GFP_KERNEL) < 0) - BUG(); + virtqueue_add_inbuf(vq, &sg, 1, buf, GFP_KERNEL); virtqueue_kick(vq); } -- 1.8.3.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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