Patch "Bluetooth: nokia: fix value check in nokia_bluetooth_serdev_probe()" has been added to the 6.4-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    Bluetooth: nokia: fix value check in nokia_bluetooth_serdev_probe()

to the 6.4-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:
     bluetooth-nokia-fix-value-check-in-nokia_bluetooth_s.patch
and it can be found in the queue-6.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit fa974dbe6aaa6b12466350b9ea2fb28b9cbd8370
Author: Yuanjun Gong <ruc_gongyuanjun@xxxxxxx>
Date:   Wed Jul 26 21:30:00 2023 +0800

    Bluetooth: nokia: fix value check in nokia_bluetooth_serdev_probe()
    
    [ Upstream commit e8b5aed31355072faac8092ead4938ddec3111fd ]
    
    in nokia_bluetooth_serdev_probe(), check the return value of
    clk_prepare_enable() and return the error code if
    clk_prepare_enable() returns an unexpected value.
    
    Fixes: 7bb318680e86 ("Bluetooth: add nokia driver")
    Signed-off-by: Yuanjun Gong <ruc_gongyuanjun@xxxxxxx>
    Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/bluetooth/hci_nokia.c b/drivers/bluetooth/hci_nokia.c
index 05f7f6de6863d..97da0b2bfd17e 100644
--- a/drivers/bluetooth/hci_nokia.c
+++ b/drivers/bluetooth/hci_nokia.c
@@ -734,7 +734,11 @@ static int nokia_bluetooth_serdev_probe(struct serdev_device *serdev)
 		return err;
 	}
 
-	clk_prepare_enable(sysclk);
+	err = clk_prepare_enable(sysclk);
+	if (err) {
+		dev_err(dev, "could not enable sysclk: %d", err);
+		return err;
+	}
 	btdev->sysclk_speed = clk_get_rate(sysclk);
 	clk_disable_unprepare(sysclk);