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mic_virtio: fix a timeout loop

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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 <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dan Carpenter 2015-12-15 13:11:28 +03:00 committed by Greg Kroah-Hartman
parent f38e87e8c8
commit e6c0effa0e
1 changed files with 1 additions and 1 deletions
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2
drivers/misc/mic/card/mic_virtio.c
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@ -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);