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rockchip: misc: read the correct number of bytes from the efuse

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Originally the cpuid var the value gets read into was defined as
    u8 cpuid[RK3399_CPUID_LEN];
hence the sizeof(cpuid) would return the correct the correct number
of array elements.

With the move to a separate function cpuid becomes a pointer and
sizeof(cpuid) hence returns the pointer size - 8 in the arm64 case.

We do have the actual id length available as function param so use
it for actual amount of bytes to read.

Fixes: 0482538499 ("rockchip: rk3399: derive ethaddr from cpuid")
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Kever Yang<kever.yang@rock-chips.com>
This commit is contained in:
Heiko Stuebner 2019-09-25 20:40:56 +02:00 committed by Kever Yang
parent dfd590075c
commit 03f98b75e4
1 changed files with 1 additions and 1 deletions
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2
arch/arm/mach-rockchip/misc.c
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@ -70,7 +70,7 @@ int rockchip_cpuid_from_efuse(const u32 cpuid_offset,
}
/* read the cpu_id range from the efuses */
ret = misc_read(dev, cpuid_offset, cpuid, sizeof(cpuid));
ret = misc_read(dev, cpuid_offset, cpuid, cpuid_length);
if (ret) {
debug("%s: reading cpuid from the efuses failed\n",
__func__);