linux-kernel - [PATCH] clk: vc5: Initialize src in vc5_mux_set

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Message-Id: <20181214214959.162744-1-sboyd@kernel.org>
Date:   Fri, 14 Dec 2018 13:49:59 -0800
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,
        Marek Vasut <marek.vasut+renesas@...il.com>,
        Alexey Firago <alexey_firago@...tor.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        linux-renesas-soc@...r.kernel.org
Subject: [PATCH] clk: vc5: Initialize src in vc5_mux_set_parent()

It seems that it may be possible to get to the regmap update call
without ever initializing this variable, so just set it to 0 to be safe.

Cc: Marek Vasut <marek.vasut+renesas@...il.com>
Cc: Alexey Firago <alexey_firago@...tor.com>
Cc: Laurent Pinchart <laurent.pinchart@...asonboard.com>
Cc: linux-renesas-soc@...r.kernel.org
Signed-off-by: Stephen Boyd <sboyd@...nel.org>
---
 drivers/clk/clk-versaclock5.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/clk-versaclock5.c b/drivers/clk/clk-versaclock5.c
index 5b393e711e94..026f76276933 100644
--- a/drivers/clk/clk-versaclock5.c
+++ b/drivers/clk/clk-versaclock5.c
@@ -246,7 +246,7 @@ static int vc5_mux_set_parent(struct clk_hw *hw, u8 index)
 	struct vc5_driver_data *vc5 =
 		container_of(hw, struct vc5_driver_data, clk_mux);
 	const u8 mask = VC5_PRIM_SRC_SHDN_EN_XTAL | VC5_PRIM_SRC_SHDN_EN_CLKIN;
-	u8 src;
+	u8 src = 0;
 
 	if ((index > 1) || !vc5->clk_mux_ins)
 		return -EINVAL;
-- 
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