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Kernel: Fix invalid jump in case RDRAND fails

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If RDRAND doesn't give us data, we want to try again, not jump to some
low address like 0x80 :^)
This commit is contained in:
Andreas Kling 2020-05-20 19:52:09 +02:00
commit 57b86fd082
Notes: sideshowbarker 2024-07-19 06:18:51 +09:00
1 changed files with 2 additions and 2 deletions
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4
Kernel/Random.cpp
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@ -35,9 +35,9 @@ static u32 random32()
if (g_cpu_supports_rdrand) { if (g_cpu_supports_rdrand) {
u32 value = 0; u32 value = 0;
asm volatile( asm volatile(
"1%=:\n" "1:\n"
"rdrand %0\n" "rdrand %0\n"
"jnc 1%=\n" "jnc 1b\n"
: "=r"(value)); : "=r"(value));
return value; return value;
} }