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-rw-r--r--arch/arm/include/asm/vdso/gettimeofday.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/include/asm/vdso/gettimeofday.h b/arch/arm/include/asm/vdso/gettimeofday.h
index 5b879ae7afc1..0ad2429c324f 100644
--- a/arch/arm/include/asm/vdso/gettimeofday.h
+++ b/arch/arm/include/asm/vdso/gettimeofday.h
@@ -75,6 +75,9 @@ static __always_inline u64 __arch_get_hw_counter(int clock_mode)
#ifdef CONFIG_ARM_ARCH_TIMER
u64 cycle_now;
+ if (!clock_mode)
+ return -EINVAL;
+
isb();
cycle_now = read_sysreg(CNTVCT);
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