2021-12-06 19:08:16

by Arnaud Pouliquen

Subject: [PATCH] rpmsg: core: Clean up resources on announce_create failure.

During the rpmsg_dev_probe, if rpdev->ops->announce_create returns an
error, the rpmsg device and default endpoint should be freed before
exiting the function.

Fixes: 5e619b48677c ("rpmsg: Split rpmsg core and virtio backend")
Suggested-by: Bjorn Andersson <[email protected]>
Signed-off-by: Arnaud Pouliquen <[email protected]>
---
drivers/rpmsg/rpmsg_core.c | 20 ++++++++++++++++----
1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/drivers/rpmsg/rpmsg_core.c b/drivers/rpmsg/rpmsg_core.c
index 27aad6baf7c5..12d7b7c6e5f9 100644
--- a/drivers/rpmsg/rpmsg_core.c
+++ b/drivers/rpmsg/rpmsg_core.c
@@ -612,13 +612,25 @@ static int rpmsg_dev_probe(struct device *dev)
err = rpdrv->probe(rpdev);
if (err) {
dev_err(dev, "%s: failed: %d\n", __func__, err);
- if (ept)
- rpmsg_destroy_ept(ept);
- goto out;
+ goto destroy_ept;
}

- if (ept && rpdev->ops->announce_create)
+ if (ept && rpdev->ops->announce_create) {
err = rpdev->ops->announce_create(rpdev);
+ if (err) {
+ dev_err(dev, "failed to announce creation\n");
+ goto remove_rpdev;
+ }
+ }
+
+ return 0;
+
+remove_rpdev:
+ if (rpdrv->remove)
+ rpdrv->remove(rpdev);
+destroy_ept:
+ if (ept)
+ rpmsg_destroy_ept(ept);
out:
return err;
}
--
2.17.1

2021-12-06 19:26:38

by Bjorn Andersson

Subject: Re: [PATCH] rpmsg: core: Clean up resources on announce_create failure.

On Mon 06 Dec 13:07 CST 2021, Arnaud Pouliquen wrote:

> During the rpmsg_dev_probe, if rpdev->ops->announce_create returns an
> error, the rpmsg device and default endpoint should be freed before
> exiting the function.
>
> Fixes: 5e619b48677c ("rpmsg: Split rpmsg core and virtio backend")
> Suggested-by: Bjorn Andersson <[email protected]>
> Signed-off-by: Arnaud Pouliquen <[email protected]>

Reviewed-by: Bjorn Andersson <[email protected]>

Thanks,
Bjorn

> ---
> drivers/rpmsg/rpmsg_core.c | 20 ++++++++++++++++----
> 1 file changed, 16 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/rpmsg/rpmsg_core.c b/drivers/rpmsg/rpmsg_core.c
> index 27aad6baf7c5..12d7b7c6e5f9 100644
> --- a/drivers/rpmsg/rpmsg_core.c
> +++ b/drivers/rpmsg/rpmsg_core.c
> @@ -612,13 +612,25 @@ static int rpmsg_dev_probe(struct device *dev)
> err = rpdrv->probe(rpdev);
> if (err) {
> dev_err(dev, "%s: failed: %d\n", __func__, err);
> - if (ept)
> - rpmsg_destroy_ept(ept);
> - goto out;
> + goto destroy_ept;
> }
>
> - if (ept && rpdev->ops->announce_create)
> + if (ept && rpdev->ops->announce_create) {
> err = rpdev->ops->announce_create(rpdev);
> + if (err) {
> + dev_err(dev, "failed to announce creation\n");
> + goto remove_rpdev;
> + }
> + }
> +
> + return 0;
> +
> +remove_rpdev:
> + if (rpdrv->remove)
> + rpdrv->remove(rpdev);
> +destroy_ept:
> + if (ept)
> + rpmsg_destroy_ept(ept);
> out:
> return err;
> }
> --
> 2.17.1
>

2021-12-08 17:27:12

by Mathieu Poirier

Subject: Re: [PATCH] rpmsg: core: Clean up resources on announce_create failure.

On Mon, Dec 06, 2021 at 08:07:58PM +0100, Arnaud Pouliquen wrote:
> During the rpmsg_dev_probe, if rpdev->ops->announce_create returns an
> error, the rpmsg device and default endpoint should be freed before
> exiting the function.
>
> Fixes: 5e619b48677c ("rpmsg: Split rpmsg core and virtio backend")
> Suggested-by: Bjorn Andersson <[email protected]>
> Signed-off-by: Arnaud Pouliquen <[email protected]>
> ---
> drivers/rpmsg/rpmsg_core.c | 20 ++++++++++++++++----
> 1 file changed, 16 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/rpmsg/rpmsg_core.c b/drivers/rpmsg/rpmsg_core.c
> index 27aad6baf7c5..12d7b7c6e5f9 100644
> --- a/drivers/rpmsg/rpmsg_core.c
> +++ b/drivers/rpmsg/rpmsg_core.c
> @@ -612,13 +612,25 @@ static int rpmsg_dev_probe(struct device *dev)
> err = rpdrv->probe(rpdev);
> if (err) {
> dev_err(dev, "%s: failed: %d\n", __func__, err);
> - if (ept)
> - rpmsg_destroy_ept(ept);
> - goto out;
> + goto destroy_ept;
> }
>
> - if (ept && rpdev->ops->announce_create)
> + if (ept && rpdev->ops->announce_create) {
> err = rpdev->ops->announce_create(rpdev);
> + if (err) {
> + dev_err(dev, "failed to announce creation\n");
> + goto remove_rpdev;
> + }
> + }
> +
> + return 0;
> +
> +remove_rpdev:
> + if (rpdrv->remove)
> + rpdrv->remove(rpdev);
> +destroy_ept:
> + if (ept)
> + rpmsg_destroy_ept(ept);
> out:
> return err;

Applied.

Thanks,
Mathieu

> }
> --
> 2.17.1
>