diff options
Diffstat (limited to 'arch/x86/kernel/idt.c')
| -rw-r--r-- | arch/x86/kernel/idt.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/x86/kernel/idt.c b/arch/x86/kernel/idt.c index 8e9318d2b56d..b609eac3d73c 100644 --- a/arch/x86/kernel/idt.c +++ b/arch/x86/kernel/idt.c @@ -354,7 +354,7 @@ void set_intr_gate(unsigned int n, const void *addr) void alloc_intr_gate(unsigned int n, const void *addr) { - BUG_ON(test_bit(n, used_vectors) || n < FIRST_SYSTEM_VECTOR); - set_bit(n, used_vectors); - set_intr_gate(n, addr); + BUG_ON(n < FIRST_SYSTEM_VECTOR); + if (!test_and_set_bit(n, used_vectors)) + set_intr_gate(n, addr); } |
