linux-kernel - [PATCH 1/9] clk: actions: Don't reference clk_init

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Message-Id: <20190731193517.237136-2-sboyd@kernel.org>
Date:   Wed, 31 Jul 2019 12:35:09 -0700
From:   Stephen Boyd <sboyd@...nel.org>
To:     Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>
Cc:     linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Subject: [PATCH 1/9] clk: actions: Don't reference clk_init_data after registration

A future patch is going to change semantics of clk_register() so that
clk_hw::init is guaranteed to be NULL after a clk is registered. Avoid
referencing this member here so that we don't run into NULL pointer
exceptions.

Cc: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Signed-off-by: Stephen Boyd <sboyd@...nel.org>
---

Please ack so I can take this through clk tree

 drivers/clk/actions/owl-common.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/actions/owl-common.c b/drivers/clk/actions/owl-common.c
index 32dd29e0a37e..71b683c4e643 100644
--- a/drivers/clk/actions/owl-common.c
+++ b/drivers/clk/actions/owl-common.c
@@ -68,6 +68,7 @@ int owl_clk_probe(struct device *dev, struct clk_hw_onecell_data *hw_clks)
 	struct clk_hw *hw;
 
 	for (i = 0; i < hw_clks->num; i++) {
+		const char *name = hw->init->name;
 
 		hw = hw_clks->hws[i];
 
@@ -77,7 +78,7 @@ int owl_clk_probe(struct device *dev, struct clk_hw_onecell_data *hw_clks)
 		ret = devm_clk_hw_register(dev, hw);
 		if (ret) {
 			dev_err(dev, "Couldn't register clock %d - %s\n",
-				i, hw->init->name);
+				i, name);
 			return ret;
 		}
 	}
-- 
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