From e6c0effa0e4dd17b4569bb62eaf6283033d475a4 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Tue, 15 Dec 2015 13:11:28 +0300 Subject: [PATCH] mic_virtio: fix a timeout loop After the loop we test "if (!retry)" to see if we timedout. The problem is "retry--" is a post-op so retry will be -1 at the end of the loop. I have fixed this by changing it to a pre-op instead. Signed-off-by: Dan Carpenter Signed-off-by: Greg Kroah-Hartman --- drivers/misc/mic/card/mic_virtio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/misc/mic/card/mic_virtio.c b/drivers/misc/mic/card/mic_virtio.c index f6ed57d3125c..17764b2fbee5 100644 --- a/drivers/misc/mic/card/mic_virtio.c +++ b/drivers/misc/mic/card/mic_virtio.c @@ -337,7 +337,7 @@ static int mic_find_vqs(struct virtio_device *vdev, unsigned nvqs, * rings have been re-assigned. */ mic_send_intr(mvdev->mdev, mvdev->c2h_vdev_db); - for (retry = 100; retry--;) { + for (retry = 100; --retry;) { if (!ioread8(&dc->used_address_updated)) break; msleep(100); -- 2.30.2