[PATCH net-next v2] can: ti_hecc: add missed clk_disable_unprepare() in error path

[Zhang Changzhong]

The driver forgets to call clk_disable_unprepare() in error path after
a success calling for clk_prepare_enable().
Fix it by adding a clk_disable_unprepare() in error path.

Signed-off-by: Zhang Changzhong <zhangchangzh...@huawei.com>
---
 drivers/net/can/ti_hecc.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/net/can/ti_hecc.c b/drivers/net/can/ti_hecc.c
index 94b1491..228ecd4 100644
--- a/drivers/net/can/ti_hecc.c
+++ b/drivers/net/can/ti_hecc.c
@@ -950,7 +950,7 @@ static int ti_hecc_probe(struct platform_device *pdev)
        err = clk_prepare_enable(priv->clk);
        if (err) {
                dev_err(&pdev->dev, "clk_prepare_enable() failed\n");
-               goto probe_exit_clk;
+               goto probe_exit_release_clk;
        }
 
        priv->offload.mailbox_read = ti_hecc_mailbox_read;
@@ -959,7 +959,7 @@ static int ti_hecc_probe(struct platform_device *pdev)
        err = can_rx_offload_add_timestamp(ndev, &priv->offload);
        if (err) {
                dev_err(&pdev->dev, "can_rx_offload_add_timestamp() failed\n");
-               goto probe_exit_clk;
+               goto probe_exit_disable_clk;
        }
 
        err = register_candev(ndev);
@@ -977,7 +977,9 @@ static int ti_hecc_probe(struct platform_device *pdev)
 
 probe_exit_offload:
        can_rx_offload_del(&priv->offload);
-probe_exit_clk:
+probe_exit_disable_clk:
+       clk_disable_unprepare(priv->clk);
+probe_exit_release_clk:
        clk_put(priv->clk);
 probe_exit_candev:
        free_candev(ndev);
-- 
1.8.3.1