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| author | Jiang Liu <jiang.liu@linux.intel.com> | 2015-06-20 11:50:50 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2015-06-20 12:00:58 +0200 |
| commit | bafac298fb20e9ae1305c710d4fd8d20c5911afa (patch) | |
| tree | d77c6c28975e3c673162563b921ad75f50360b74 /arch/x86/kernel/hpet.c | |
| parent | f6b1464f647424bbeb609ec832428e4079940701 (diff) | |
| download | linux-0-day-bafac298fb20e9ae1305c710d4fd8d20c5911afa.tar.gz linux-0-day-bafac298fb20e9ae1305c710d4fd8d20c5911afa.tar.xz | |
x86/hpet: Check for irq==0 when allocating hpet MSI interrupts
irq == 0 is not a valid irq for a irqdomain MSI allocation, but hpet
code checks only for negative return values.
Reported-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Borislav Petkov <bp@alien8.de>
Link: http://lkml.kernel.org/r/558447AF.30703@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel/hpet.c')
| -rw-r--r-- | arch/x86/kernel/hpet.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c index e2449cf38b06e..c47aab35a17ec 100644 --- a/arch/x86/kernel/hpet.c +++ b/arch/x86/kernel/hpet.c @@ -578,7 +578,7 @@ static void hpet_msi_capability_lookup(unsigned int start_timer) continue; irq = hpet_assign_irq(hpet_domain, hdev, hdev->num); - if (irq < 0) + if (irq <= 0) continue; sprintf(hdev->name, "hpet%d", i); |