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: 5e619b4 ("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]> Cc: stable <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Mathieu Poirier <[email protected]>
mo123 · Dec 8, 2021 · 8066c61 · 8066c61
1 parent 631af6e
commit 8066c61
Showing 1 changed file with 16 additions and 4 deletions.
diff --git 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;
 }