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From: Stephen Boyd <sboyd@kernel.org>
To: Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@kernel.org>
Cc: linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org,
	linux-rtc@vger.kernel.org,
	Alessandro Zummo <a.zummo@towertech.it>,
	Alexandre Belloni <alexandre.belloni@bootlin.com>,
	Maxime Ripard <maxime.ripard@bootlin.com>,
	Chen-Yu Tsai <wens@csie.org>
Subject: [PATCH 3/4] rtc: sun6i: Don't reference clk_init_data after registration
Date: Thu, 15 Aug 2019 09:00:19 -0700
Message-ID: <20190815160020.183334-4-sboyd@kernel.org> (raw)
In-Reply-To: <20190815160020.183334-1-sboyd@kernel.org>

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: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Maxime Ripard <maxime.ripard@bootlin.com>
Cc: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
---

Please ack so I can take this through clk tree.

 drivers/rtc/rtc-sun6i.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-sun6i.c b/drivers/rtc/rtc-sun6i.c
index c0e75c373605..d50ee023b559 100644
--- a/drivers/rtc/rtc-sun6i.c
+++ b/drivers/rtc/rtc-sun6i.c
@@ -279,7 +279,7 @@ static void __init sun6i_rtc_clk_init(struct device_node *node,
 
 	of_property_read_string_index(node, "clock-output-names", 1,
 				      &clkout_name);
-	rtc->ext_losc = clk_register_gate(NULL, clkout_name, rtc->hw.init->name,
+	rtc->ext_losc = clk_register_gate(NULL, clkout_name, init.name,
 					  0, rtc->base + SUN6I_LOSC_OUT_GATING,
 					  SUN6I_LOSC_OUT_GATING_EN_OFFSET, 0,
 					  &rtc->lock);
-- 
Sent by a computer through tubes


  parent reply index

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-15 16:00 [PATCH 0/4] Followup to "Make clk_hw::init NULL after clk registration" Stephen Boyd
2019-08-15 16:00 ` [PATCH 1/4] clk: milbeaut: Don't reference clk_init_data after registration Stephen Boyd
2019-08-16 17:20   ` Stephen Boyd
2019-08-15 16:00 ` [PATCH 2/4] clk: zx296718: " Stephen Boyd
2019-08-16 17:20   ` Stephen Boyd
2019-08-15 16:00 ` Stephen Boyd [this message]
2019-08-15 16:11   ` [PATCH 3/4] rtc: sun6i: " Chen-Yu Tsai
2019-08-15 21:59   ` Stephen Boyd
2019-08-16 14:50   ` Alexandre Belloni
2019-08-16 17:20   ` Stephen Boyd
2019-08-15 16:00 ` [PATCH 4/4] clk: qcom: Remove error prints from DFS registration Stephen Boyd
2019-08-16  2:48   ` Taniya Das
2019-08-16 17:20   ` Stephen Boyd
2019-08-19  7:02 ` [PATCH 0/4] Followup to "Make clk_hw::init NULL after clk registration" Guillaume Tucker

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