[PATCH 2/7] remoteproc: avoid registering a virtio device if not supported

Ohad Ben-Cohen ohad at wizery.com
Wed Dec 14 06:48:30 EST 2011

From: Mark Grosen <mgrosen at ti.com>

Let remoteproc know when the firmware doesn't support any virtio
functionality, so registering a virtio device can be avoided.

This is needed for remote processors that doesn't require any
virtio-based communications, but are still controlled via remoteproc.

[ohad at wizery.com: write commit log]

Signed-off-by: Mark Grosen <mgrosen at ti.com>
Signed-off-by: Ohad Ben-Cohen <ohad at wizery.com>
 drivers/remoteproc/remoteproc_core.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
index 0d9a955..080c056 100644
--- a/drivers/remoteproc/remoteproc_core.c
+++ b/drivers/remoteproc/remoteproc_core.c
@@ -695,7 +695,7 @@ static int
 rproc_handle_virtio_rsc(struct rproc *rproc, struct fw_resource *rsc, int len)
 	struct device *dev = rproc->dev;
-	int ret = 0;
+	int ret = -ENODEV;
 	for (; len >= sizeof(*rsc); rsc++, len -= sizeof(*rsc))
 		if (rsc->type == RSC_VIRTIO_DEV) {

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