From bc34f0ba83fa28cef9fed045d7296dcae7861aed Mon Sep 17 00:00:00 2001 From: Dario Binacchi Date: Wed, 30 Dec 2020 00:06:38 +0100 Subject: [PATCH] ti: am33xx: fix do_enable_clocks() to accept NULL parameters Up till this commit passing NULL as input parameter was allowed, but not handled properly. When a NULL parameter was passed to the function a data abort was raised. Signed-off-by: Dario Binacchi Reviewed-by: Simon Glass --- arch/arm/mach-omap2/am33xx/clock.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/arch/arm/mach-omap2/am33xx/clock.c b/arch/arm/mach-omap2/am33xx/clock.c index 8819062aaa..130ee6c6e3 100644 --- a/arch/arm/mach-omap2/am33xx/clock.c +++ b/arch/arm/mach-omap2/am33xx/clock.c @@ -194,13 +194,14 @@ void do_enable_clocks(u32 *const *clk_domains, u32 i, max = 100; /* Put the clock domains in SW_WKUP mode */ - for (i = 0; (i < max) && clk_domains[i]; i++) { + for (i = 0; (i < max) && clk_domains && clk_domains[i]; i++) { enable_clock_domain(clk_domains[i], CD_CLKCTRL_CLKTRCTRL_SW_WKUP); } /* Clock modules that need to be put in SW_EXPLICIT_EN mode */ - for (i = 0; (i < max) && clk_modules_explicit_en[i]; i++) { + for (i = 0; (i < max) && clk_modules_explicit_en && + clk_modules_explicit_en[i]; i++) { enable_clock_module(clk_modules_explicit_en[i], MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN, wait_for_enable); @@ -215,12 +216,13 @@ void do_disable_clocks(u32 *const *clk_domains, /* Clock modules that need to be put in SW_DISABLE */ - for (i = 0; (i < max) && clk_modules_disable[i]; i++) + for (i = 0; (i < max) && clk_modules_disable && clk_modules_disable[i]; + i++) disable_clock_module(clk_modules_disable[i], wait_for_disable); /* Put the clock domains in SW_SLEEP mode */ - for (i = 0; (i < max) && clk_domains[i]; i++) + for (i = 0; (i < max) && clk_domains && clk_domains[i]; i++) disable_clock_domain(clk_domains[i]); } -- 2.39.5