rpmsg: glink: Release driver_override

commit fb80ef67e8ff6a00d3faad4cb348dafdb8eccfd8 upstream.

Upon termination of the rpmsg_device, driver_override needs to be freed
to avoid leaking the potentially assigned string.

Fixes: 42cd402b8fd4 ("rpmsg: Fix kfree() of static memory on setting driver_override")
Fixes: 39e47767ec9b ("rpmsg: Add driver_override device attribute for rpmsg_device")
Reviewed-by: Chris Lew <quic_clew@quicinc.com>
Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230109223931.1706429-1-quic_bjorande@quicinc.com
(cherry picked from commit fb80ef67e8ff6a00d3faad4cb348dafdb8eccfd8)
Signed-off-by: Lee Jones <lee@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/rpmsg/qcom_glink_native.c b/drivers/rpmsg/qcom_glink_native.c
index c1dfad2986859c548dcaa61bb3f5bf55fd1e8f61..8ee814d6dddce6c1272702001f023a6c6c4d4339 100644 (file)
--- a/drivers/rpmsg/qcom_glink_native.c
+++ b/drivers/rpmsg/qcom_glink_native.c
@@ -1354,6 +1354,7 @@ static void qcom_glink_rpdev_release(struct device *dev)
        struct glink_channel *channel = to_glink_channel(rpdev->ept);
 
        channel->rpdev = NULL;
+       kfree(rpdev->driver_override);
        kfree(rpdev);
 }