mfd: Fix aat2870 build failure for x86_64
Without this fix, we get: error: call to ‘copy_from_user_overflow’ declared with attribute error: copy_from_user() buffer size is not provably correct make[3]: *** [drivers/mfd/aat2870-core.o] Error 1 And this was triggered by commit da417bacc9143b934f1a480a25d0fb2bb648a820 Signed-off-by: Jin Park <jinyoungp@nvidia.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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@ -295,7 +295,7 @@ static ssize_t aat2870_reg_write_file(struct file *file,
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{
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{
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struct aat2870_data *aat2870 = file->private_data;
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struct aat2870_data *aat2870 = file->private_data;
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char buf[32];
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char buf[32];
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int buf_size;
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ssize_t buf_size;
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char *start = buf;
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char *start = buf;
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unsigned long addr, val;
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unsigned long addr, val;
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int ret;
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int ret;
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