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From: Biju Das <biju.das.jz@bp.renesas.com>
To: cip-dev@lists.cip-project.org,
	Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>,
	Pavel Machek <pavel@denx.de>
Cc: Biju Das <biju.das.jz@bp.renesas.com>,
	Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Subject: [PATCH 5.10.y-cip 2/6] clk: versaclock3: Update vc3_get_div() to avoid divide by zero
Date: Fri,  2 Feb 2024 12:23:34 +0000	[thread overview]
Message-ID: <20240202122338.309435-3-biju.das.jz@bp.renesas.com> (raw)
In-Reply-To: <20240202122338.309435-1-biju.das.jz@bp.renesas.com>

commit eb16ddb838dd8602961b5fc17d1350cd41ae69e0 upstream.

Update vc3_get_div() to avoid divide by zero operation on
vc3_div_round_rate() by returning1, if there is no table match
found.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20231122142310.203169-2-biju.das.jz@bp.renesas.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
---
 drivers/clk/clk-versaclock3.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/clk-versaclock3.c b/drivers/clk/clk-versaclock3.c
index aa36c68ea09a..2443ff3b4eee 100644
--- a/drivers/clk/clk-versaclock3.c
+++ b/drivers/clk/clk-versaclock3.c
@@ -475,7 +475,7 @@ static unsigned int vc3_get_div(const struct clk_div_table *table,
 		if (clkt->val == val)
 			return clkt->div;
 
-	return 0;
+	return 1;
 }
 
 static unsigned long vc3_div_recalc_rate(struct clk_hw *hw,
-- 
2.25.1



  parent reply	other threads:[~2024-02-02 12:23 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-02-02 12:23 [PATCH 5.10.y-cip 0/6] Versa3 clk driver improvements Biju Das
2024-02-02 12:23 ` [PATCH 5.10.y-cip 1/6] arm64: defconfig: Enable Renesas VersaClock 3 clock generator config Biju Das
2024-02-02 12:23 ` Biju Das [this message]
2024-02-02 12:23 ` [PATCH 5.10.y-cip 3/6] clk: versaclock3: Avoid unnecessary padding Biju Das
2024-02-02 12:23 ` [PATCH 5.10.y-cip 4/6] clk: versaclock3: Use u8 return type for get_parent() callback Biju Das
2024-02-02 12:23 ` [PATCH 5.10.y-cip 5/6] clk: versaclock3: Add missing space between ')' and '{' Biju Das
2024-02-02 12:23 ` [PATCH 5.10.y-cip 6/6] clk: versaclock3: Drop ret variable Biju Das
2024-02-05 18:22 ` [PATCH 5.10.y-cip 0/6] Versa3 clk driver improvements Pavel Machek
2024-02-06 10:50 ` Pavel Machek

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