[PATCH] clk: renesas: renesas-rzg2l-cpg: Fix off-by-one check in rzg2l_cpg_clk_src_twocell_get()

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
To: Geert Uytterhoeven <geert+renesas@glider.be>,
	Dan Carpenter <dan.carpenter@oracle.com>,
	Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@kernel.org>
Cc: Biju Das <biju.das.jz@bp.renesas.com>,
	Prabhakar <prabhakar.csengg@gmail.com>,
	linux-renesas-soc@vger.kernel.org, linux-clk@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Subject: [PATCH] clk: renesas: renesas-rzg2l-cpg: Fix off-by-one check in rzg2l_cpg_clk_src_twocell_get()
Date: Thu, 17 Jun 2021 16:54:32 +0100	[thread overview]
Message-ID: <20210617155432.18827-1-prabhakar.mahadev-lad.rj@bp.renesas.com> (raw)

Fix clock index out of range check for module clocks in
rzg2l_cpg_clk_src_twocell_get().

Fixes: ef3c613ccd68 ("clk: renesas: Add CPG core wrapper for RZ/G2L SoC")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
 drivers/clk/renesas/renesas-rzg2l-cpg.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/renesas/renesas-rzg2l-cpg.c b/drivers/clk/renesas/renesas-rzg2l-cpg.c
index 49188f2a341a..0007cce1531e 100644
--- a/drivers/clk/renesas/renesas-rzg2l-cpg.c
+++ b/drivers/clk/renesas/renesas-rzg2l-cpg.c
@@ -221,7 +221,7 @@ static struct clk
 
 	case CPG_MOD:
 		type = "module";
-		if (clkidx > priv->num_mod_clks) {
+		if (clkidx >= priv->num_mod_clks) {
 			dev_err(dev, "Invalid %s clock index %u\n", type,
 				clkidx);
 			return ERR_PTR(-EINVAL);
-- 
2.17.1

