This is a note to let you know that I've just added the patch titled
usb: typec: ucsi: Put fwnode in any case during ->probe()
to the 5.11-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
usb-typec-ucsi-put-fwnode-in-any-case-during-probe.patch
and it can be found in the queue-5.11 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From b9a0866a5bdf6a4643a52872ada6be6184c6f4f2 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>
Date: Wed, 5 May 2021 01:23:37 +0300
Subject: usb: typec: ucsi: Put fwnode in any case during ->probe()
From: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>
commit b9a0866a5bdf6a4643a52872ada6be6184c6f4f2 upstream.
device_for_each_child_node() bumps a reference counting of a returned variable.
We have to balance it whenever we return to the caller.
Fixes: c1b0bc2dabfa ("usb: typec: Add support for UCSI interface")
Cc: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
Reviewed-by: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
Signed-off-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>
Link: https://lore.kernel.org/r/20210504222337.3151726-1-andy.shevchenko@xxxxxxxxx
Cc: stable <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/typec/ucsi/ucsi.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
--- a/drivers/usb/typec/ucsi/ucsi.c
+++ b/drivers/usb/typec/ucsi/ucsi.c
@@ -995,6 +995,7 @@ static const struct typec_operations ucs
.pr_set = ucsi_pr_swap
};
+/* Caller must call fwnode_handle_put() after use */
static struct fwnode_handle *ucsi_find_fwnode(struct ucsi_connector *con)
{
struct fwnode_handle *fwnode;
@@ -1028,7 +1029,7 @@ static int ucsi_register_port(struct ucs
command |= UCSI_CONNECTOR_NUMBER(con->num);
ret = ucsi_send_command(ucsi, command, &con->cap, sizeof(con->cap));
if (ret < 0)
- goto out;
+ goto out_unlock;
if (con->cap.op_mode & UCSI_CONCAP_OPMODE_DRP)
cap->data = TYPEC_PORT_DRD;
@@ -1124,6 +1125,8 @@ static int ucsi_register_port(struct ucs
trace_ucsi_register_port(con->num, &con->status);
out:
+ fwnode_handle_put(cap->fwnode);
+out_unlock:
mutex_unlock(&con->lock);
return ret;
}
Patches currently in stable-queue which might be from andy.shevchenko@xxxxxxxxx are
queue-5.11/hwmon-ltc2992-put-fwnode-in-error-case-during-probe.patch
queue-5.11/usb-typec-ucsi-put-fwnode-in-any-case-during-probe.patch
queue-5.11/usb-dwc3-pci-enable-usb2-gadget-lpm-disable-for-intel-merrifield.patch
queue-5.11/iio-proximity-pulsedlight-fix-rumtime-pm-imbalance-o.patch
