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From c067b46d731a764fc46ecc466c2967088c97089e Mon Sep 17 00:00:00 2001
From: Paul Cercueil <paul@crapouillou.net>
Date: Thu, 13 Feb 2020 13:19:51 -0300
Subject: [PATCH] clk: ingenic/jz4770: Exit with error if CGU init failed
Git-commit: c067b46d731a764fc46ecc466c2967088c97089e
Patch-mainline: v5.7-rc1
References: git-fixes

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@vger.kernel.org
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Reported-by: kbuild test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lkml.kernel.org/r/20200213161952.37460-1-paul@crapouillou.net
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 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)
-- 
2.16.4