[PATCH 5.15 174/532] clk: clocking-wizard: Fix Oops in clk_wzrd_register_divider()

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From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

[ Upstream commit 9c632a6396505a019ea6d12b5ab45e659a542a93 ]

Smatch detected this potential error pointer dereference
clk_wzrd_register_divider().  If devm_clk_hw_register() fails then
it sets "hw" to an error pointer and then dereferences it on the
next line.  Return the error directly instead.

Fixes: 5a853722eb32 ("staging: clocking-wizard: Add support for dynamic reconfiguration")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Link: https://lore.kernel.org/r/f0e39b5c-4554-41e0-80d9-54ca3fabd060@kili.mountain
Reviewed-by: Michal Simek <michal.simek@xxxxxxx>
Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/staging/clocking-wizard/clk-xlnx-clock-wizard.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/clocking-wizard/clk-xlnx-clock-wizard.c b/drivers/staging/clocking-wizard/clk-xlnx-clock-wizard.c
index 39367712ef540..8c1934df70dea 100644
--- a/drivers/staging/clocking-wizard/clk-xlnx-clock-wizard.c
+++ b/drivers/staging/clocking-wizard/clk-xlnx-clock-wizard.c
@@ -347,7 +347,7 @@ static struct clk *clk_wzrd_register_divider(struct device *dev,
 	hw = &div->hw;
 	ret = devm_clk_hw_register(dev, hw);
 	if (ret)
-		hw = ERR_PTR(ret);
+		return ERR_PTR(ret);
 
 	return hw->clk;
 }
-- 
2.39.2






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