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| author | Thomas Gleixner <tglx@linutronix.de> | 2014-05-07 15:44:10 +0000 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2014-05-16 14:05:19 +0200 |
| commit | aa5125a45568f8f666f6d2f224fe8ab261b1069e (patch) | |
| tree | 4c3ffd6028e3611b8cb6bf7162861aab8dfb9394 | |
| parent | d07c9f18756e8231909a9bbcbfa7502c60cbc810 (diff) | |
| download | linux-aa5125a45568f8f666f6d2f224fe8ab261b1069e.tar.bz2 | |
iommu: smar: Fix return value check of create_irq()
ia64 returns a negative error code when allocation fails andx86
returns 0. Make it handle both.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Grant Likely <grant.likely@linaro.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: x86@kernel.org
Acked-by: Joerg Roedel <joro@8bytes.org>
Cc: linux-ia64@vger.kernel.org
Cc: iommu@lists.linux-foundation.org
Link: http://lkml.kernel.org/r/20140507154336.178850165@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| -rw-r--r-- | drivers/iommu/dmar.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c index 39f8b717fe84..3ce1f62a091f 100644 --- a/drivers/iommu/dmar.c +++ b/drivers/iommu/dmar.c @@ -1551,7 +1551,7 @@ int dmar_set_interrupt(struct intel_iommu *iommu) return 0; irq = create_irq(); - if (!irq) { + if (irq <= 0) { pr_err("IOMMU: no free vectors\n"); return -EINVAL; } |