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authorOhad Ben-Cohen <ohad@wizery.com>2012-11-12 13:13:51 +0400
committerOhad Ben-Cohen <ohad@wizery.com>2012-11-29 12:05:09 +0400
commitdab55bbafdb491ce2c3f2d7136e54101e948b911 (patch)
tree689501537c7f05eb18bd0093aa868ed55fbaaac1 /drivers/remoteproc/remoteproc_virtio.c
parent6f0c0580b70c89094b3422ba81118c7b959c7556 (diff)
downloadlinux-dab55bbafdb491ce2c3f2d7136e54101e948b911.tar.xz
remoteproc: fix error path of ->find_vqs
Eliminate an erroneous invocation of rproc_shutdown inside the error path of rproc_virtio_find_vqs. Reported-by: Ido Yariv <ido@wizery.com> Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Diffstat (limited to 'drivers/remoteproc/remoteproc_virtio.c')
-rw-r--r--drivers/remoteproc/remoteproc_virtio.c18
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/remoteproc/remoteproc_virtio.c b/drivers/remoteproc/remoteproc_virtio.c
index e7a4780e93db..9e198e590675 100644
--- a/drivers/remoteproc/remoteproc_virtio.c
+++ b/drivers/remoteproc/remoteproc_virtio.c
@@ -120,15 +120,11 @@ static struct virtqueue *rp_find_vq(struct virtio_device *vdev,
return vq;
}
-static void rproc_virtio_del_vqs(struct virtio_device *vdev)
+static void __rproc_virtio_del_vqs(struct virtio_device *vdev)
{
struct virtqueue *vq, *n;
- struct rproc *rproc = vdev_to_rproc(vdev);
struct rproc_vring *rvring;
- /* power down the remote processor before deleting vqs */
- rproc_shutdown(rproc);
-
list_for_each_entry_safe(vq, n, &vdev->vqs, list) {
rvring = vq->priv;
rvring->vq = NULL;
@@ -137,6 +133,16 @@ static void rproc_virtio_del_vqs(struct virtio_device *vdev)
}
}
+static void rproc_virtio_del_vqs(struct virtio_device *vdev)
+{
+ struct rproc *rproc = vdev_to_rproc(vdev);
+
+ /* power down the remote processor before deleting vqs */
+ rproc_shutdown(rproc);
+
+ __rproc_virtio_del_vqs(vdev);
+}
+
static int rproc_virtio_find_vqs(struct virtio_device *vdev, unsigned nvqs,
struct virtqueue *vqs[],
vq_callback_t *callbacks[],
@@ -163,7 +169,7 @@ static int rproc_virtio_find_vqs(struct virtio_device *vdev, unsigned nvqs,
return 0;
error:
- rproc_virtio_del_vqs(vdev);
+ __rproc_virtio_del_vqs(vdev);
return ret;
}