linux-kernel - [PATCH v2 1/2] clk: ingenic/jz4770: Exit with error if CGU init failed

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Message-Id: <20200213161952.37460-1-paul@crapouillou.net>
Date:   Thu, 13 Feb 2020 13:19:51 -0300
From:   Paul Cercueil <paul@...pouillou.net>
To:     Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...eaurora.org>
Cc:     od@...c.me, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org, Paul Cercueil <paul@...pouillou.net>,
        stable@...r.kernel.org, kbuild test robot <lkp@...el.com>,
        Dan Carpenter <dan.carpenter@...cle.com>
Subject: [PATCH v2 1/2] clk: ingenic/jz4770: Exit with error if CGU init failed

Exit jz4770_cgu_init() if the 'cgu' pointer we get is NULL, since the
pointer is passed as argument to functions later on.

Fixes: 7a01c19007ad ("clk: Add Ingenic jz4770 CGU driver")
Cc: stable@...r.kernel.org
Signed-off-by: Paul Cercueil <paul@...pouillou.net>
Reported-by: kbuild test robot <lkp@...el.com>
Reported-by: Dan Carpenter <dan.carpenter@...cle.com>
---

Notes:
    v2: Added Fixes: tag

 drivers/clk/ingenic/jz4770-cgu.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/ingenic/jz4770-cgu.c b/drivers/clk/ingenic/jz4770-cgu.c
index 956dd653a43d..c051ecba5cf8 100644
--- a/drivers/clk/ingenic/jz4770-cgu.c
+++ b/drivers/clk/ingenic/jz4770-cgu.c
@@ -432,8 +432,10 @@ static void __init jz4770_cgu_init(struct device_node *np)
 
 	cgu = ingenic_cgu_new(jz4770_cgu_clocks,
 			      ARRAY_SIZE(jz4770_cgu_clocks), np);
-	if (!cgu)
+	if (!cgu) {
 		pr_err("%s: failed to initialise CGU\n", __func__);
+		return;
+	}
 
 	retval = ingenic_cgu_register_clocks(cgu);
 	if (retval)
-- 
2.25.0