From: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx>
reset_control_deassert() could return an error. Some devices cannot work
if reset signal de-assert operation fails. To avoid this check the return
code of reset_control_deassert() in ravb_probe() and take proper action.
Along with it, the free_netdev() call from the error path was moved after
reset_control_assert() on its own label (out_free_netdev) to free
netdev in case reset_control_deassert() fails.
Fixes: 0d13a1a464a0 ("ravb: Add reset support")
Reviewed-by: Sergey Shtylyov <s.shtylyov@xxxxxx>
Reviewed-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx>
---
Changes in v2:
- documented the addition of out_free_netdev goto label
- collected Rb tags
Changes since [1]:
- added goto label for free_netdev()
[1] https://lore.kernel.org/all/20231120084606.4083194-1-claudiu.beznea.uj@xxxxxxxxxxxxxx/
drivers/net/ethernet/renesas/ravb_main.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index c70cff80cc99..50c4c79be035 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -2645,7 +2645,10 @@ static int ravb_probe(struct platform_device *pdev)
ndev->features = info->net_features;
ndev->hw_features = info->net_hw_features;
- reset_control_deassert(rstc);
+ error = reset_control_deassert(rstc);
+ if (error)
+ goto out_free_netdev;
+
pm_runtime_enable(&pdev->dev);
pm_runtime_get_sync(&pdev->dev);
@@ -2872,11 +2875,11 @@ static int ravb_probe(struct platform_device *pdev)
out_disable_refclk:
clk_disable_unprepare(priv->refclk);
out_release:
- free_netdev(ndev);
-
pm_runtime_put(&pdev->dev);
pm_runtime_disable(&pdev->dev);
reset_control_assert(rstc);
+out_free_netdev:
+ free_netdev(ndev);
return error;
}
--
2.39.2
