Alan Cox dfabdacb27 iommu_gas: Avoid double unmapping on error ... In the extremely unlikely case that the iommu_gas_map_region() call in bus_dma_iommu_load_ident() failed, we would attempt to unmap the failed entry twice, first in iommu_gas_map_region(), and a second time in the caller. Once is enough, and twice is problematic because it leads to a second RB_REMOVE call on the same tree node. Like it or not, RB_TREE does not handle that possibility. Reviewed by: kib MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D35869		2022-07-21 02:00:46 -05:00
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busdma_iommu.c	iommu_gas: Avoid double unmapping on error	2022-07-21 02:00:46 -05:00
busdma_iommu.h	busdma_iommu: Fine-grained locking for the dmamap's map list	2022-06-25 00:59:23 -05:00
iommu.h	iommu: Shrink the iommu map entry structure	2022-07-15 22:24:52 -05:00
iommu_gas.c	iommu_gas: consolidate find_space helpers	2022-07-10 14:24:23 -05:00
iommu_gas.h	Remove "All Rights Reserved" from FreeBSD Foundation sys/ copyrights	2021-08-08 10:42:24 -04:00
iommu_msi.h	o Add iommu de-initialization method for MSI interface.	2020-10-24 20:09:27 +00:00
iommu_types.h	Remove "All Rights Reserved" from FreeBSD Foundation sys/ copyrights	2021-08-08 10:42:24 -04:00