linux-kernel - [PATCH 7/7] clk: qcom: mmcc-msm8974: fix terminating of frequency table arrays

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Message-Id: <20240229-freq-table-terminator-v1-7-074334f0905c@gmail.com>
Date: Thu, 29 Feb 2024 19:07:52 +0100
From: Gabor Juhos <j4g8y7@...il.com>
To: Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konrad.dybcio@...aro.org>, 
 Michael Turquette <mturquette@...libre.com>, 
 Stephen Boyd <sboyd@...nel.org>, 
 Sricharan Ramabadhran <quic_srichara@...cinc.com>, 
 Varadarajan Narayanan <quic_varada@...cinc.com>, 
 Gokul Sriram Palanisamy <quic_gokulsri@...cinc.com>, 
 Devi Priya <quic_devipriy@...cinc.com>, 
 Anusha Rao <quic_anusha@...cinc.com>, 
 Bryan O'Donoghue <bryan.odonoghue@...aro.org>, 
 Georgi Djakov <gdjakov@...sol.com>
Cc: linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Gabor Juhos <j4g8y7@...il.com>
Subject: [PATCH 7/7] clk: qcom: mmcc-msm8974: fix terminating of frequency
 table arrays

The frequency table arrays are supposed to be terminated with an
empty element. Add such entry to the end of the arrays where it
is missing in order to avoid possible out-of-bound access when
the table is traversed by functions like qcom_find_freq() or
qcom_find_freq_floor().

Only compile tested.

Fixes: d8b212014e69 ("clk: qcom: Add support for MSM8974's multimedia clock controller (MMCC)")
Signed-off-by: Gabor Juhos <j4g8y7@...il.com>
---
 drivers/clk/qcom/mmcc-msm8974.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/clk/qcom/mmcc-msm8974.c b/drivers/clk/qcom/mmcc-msm8974.c
index a31f6cf0c4e0c..36f460b78be2c 100644
--- a/drivers/clk/qcom/mmcc-msm8974.c
+++ b/drivers/clk/qcom/mmcc-msm8974.c
@@ -290,6 +290,7 @@ static struct freq_tbl ftbl_mmss_axi_clk[] = {
 	F(291750000, P_MMPLL1, 4, 0, 0),
 	F(400000000, P_MMPLL0, 2, 0, 0),
 	F(466800000, P_MMPLL1, 2.5, 0, 0),
+	{ }
 };
 
 static struct clk_rcg2 mmss_axi_clk_src = {
@@ -314,6 +315,7 @@ static struct freq_tbl ftbl_ocmemnoc_clk[] = {
 	F(150000000, P_GPLL0, 4, 0, 0),
 	F(291750000, P_MMPLL1, 4, 0, 0),
 	F(400000000, P_MMPLL0, 2, 0, 0),
+	{ }
 };
 
 static struct clk_rcg2 ocmemnoc_clk_src = {

-- 
2.44.0