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clk: ingenic/jz4770: Exit with error if CGU init failed

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commit c067b46d731a764fc46ecc466c2967088c97089e upstream.

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

Fixes: 7a01c19007 ("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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Paul Cercueil 2020-02-13 13:19:51 -03:00 committed by Greg Kroah-Hartman
parent cdfa83e14d
commit ae6baa8cec
1 changed files with 3 additions and 1 deletions
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4
drivers/clk/ingenic/jz4770-cgu.c
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@ -436,8 +436,10 @@ static void __init jz4770_cgu_init(struct device_node *np)
cgu = ingenic_cgu_new(jz4770_cgu_clocks, cgu = ingenic_cgu_new(jz4770_cgu_clocks,
ARRAY_SIZE(jz4770_cgu_clocks), np); ARRAY_SIZE(jz4770_cgu_clocks), np);
if (!cgu) if (!cgu) {
pr_err("%s: failed to initialise CGU\n", __func__); pr_err("%s: failed to initialise CGU\n", __func__);
return;
}
retval = ingenic_cgu_register_clocks(cgu); retval = ingenic_cgu_register_clocks(cgu);
if (retval) if (retval)