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random-util: rename "err" to "success"
After all rdrand returns 1 on success, and 0 on failure, hence let's name this accordingly.
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@ -35,7 +35,7 @@ int rdrand(unsigned long *ret) {
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#if defined(__i386__) || defined(__x86_64__)
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static int have_rdrand = -1;
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unsigned char err;
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uint8_t success;
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if (have_rdrand < 0) {
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uint32_t eax, ebx, ecx, edx;
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@ -60,9 +60,9 @@ int rdrand(unsigned long *ret) {
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asm volatile("rdrand %0;"
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"setc %1"
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: "=r" (*ret),
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"=qm" (err));
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msan_unpoison(&err, sizeof(err));
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if (!err)
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"=qm" (success));
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msan_unpoison(&success, sizeof(sucess));
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if (!success)
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return -EAGAIN;
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return 0;
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