The patch below does not apply to the 4.19-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@xxxxxxxxxxxxxxx>.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
>From 8066c615cb69b7da8a94f59379847b037b3a5e46 Mon Sep 17 00:00:00 2001
From: Arnaud Pouliquen <arnaud.pouliquen@xxxxxxxxxxx>
Date: Mon, 6 Dec 2021 20:07:58 +0100
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 <bjorn.andersson@xxxxxxxxxx>
Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@xxxxxxxxxxx>
Reviewed-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
Cc: stable <stable@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20211206190758.10004-1-arnaud.pouliquen@xxxxxxxxxxx
Signed-off-by: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>
diff --git a/drivers/rpmsg/rpmsg_core.c b/drivers/rpmsg/rpmsg_core.c
index f031b2b1b21c..d9e612f4f0f2 100644
--- a/drivers/rpmsg/rpmsg_core.c
+++ b/drivers/rpmsg/rpmsg_core.c
@@ -540,13 +540,25 @@ 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;
}
