5.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Yuanjun Gong <ruc_gongyuanjun@xxxxxxx>
[ 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>
---
drivers/bluetooth/hci_nokia.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/bluetooth/hci_nokia.c b/drivers/bluetooth/hci_nokia.c
index 6463350b79779..82db15585196a 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);
--
2.40.1
