Commit-ID: aa5125a45568f8f666f6d2f224fe8ab261b1069e
Gitweb: http://git.kernel.org/tip/aa5125a45568f8f666f6d2f224fe8ab261b1069e
Author: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
AuthorDate: Wed, 7 May 2014 15:44:10 +0000
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Fri, 16 May 2014 14:05:19 +0200
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@xxxxxxxxxxxxx>
Reviewed-by: Grant Likely <grant.likely@xxxxxxxxxx>
Cc: Tony Luck <tony.luck@xxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Fenghua Yu <fenghua.yu@xxxxxxxxx>
Cc: x86@xxxxxxxxxx
Acked-by: Joerg Roedel <joro@xxxxxxxxxx>
Cc: linux-ia64@xxxxxxxxxxxxxxx
Cc: iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx
Link: http://lkml.kernel.org/r/20140507154336.178850165@xxxxxxxxxxxxx
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
---
drivers/iommu/dmar.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c
index 39f8b71..3ce1f62 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;
}
--
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