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authorTakashi Iwai <tiwai@suse.de>2017-01-25 22:11:17 +0100
committerTakashi Iwai <tiwai@suse.de>2017-01-25 22:11:17 +0100
commite1a063f43a5e0435ecf8a2b6d42e10e20e8caf61 (patch)
tree7329fb15e57917a503c859f7266fcd034728bd54 /drivers/iommu/dmar.c
parent9eb5d0e635ebe2f227d591e531d48c6f01c0dd78 (diff)
parent0369d6315bc2bc56da2a2b15c8074b889096a47e (diff)
Merge branch 'topic/intel-lpe-audio' into for-next
Diffstat (limited to 'drivers/iommu/dmar.c')
-rw-r--r--drivers/iommu/dmar.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c
index a88576d50740..8ccbd7023194 100644
--- a/drivers/iommu/dmar.c
+++ b/drivers/iommu/dmar.c
@@ -903,8 +903,10 @@ int __init detect_intel_iommu(void)
x86_init.iommu.iommu_init = intel_iommu_init;
#endif
- acpi_put_table(dmar_tbl);
- dmar_tbl = NULL;
+ if (dmar_tbl) {
+ acpi_put_table(dmar_tbl);
+ dmar_tbl = NULL;
+ }
up_write(&dmar_global_lock);
return ret ? 1 : -ENODEV;