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linux/arch/powerpc/platforms
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Alexey Kardashevskiy 98fd72fe82 powerpc/powernv/ioda2: Remove redundant free of TCE pages 
When IODA2 creates a PE, it creates an IOMMU table with it_ops::free
set to pnv_ioda2_table_free() which calls pnv_pci_ioda2_table_free_pages().

Since iommu_tce_table_put() calls it_ops::free when the last reference
to the table is released, explicit call to pnv_pci_ioda2_table_free_pages()
is not needed so let's remove it.

This should fix double free in the case of PCI hotuplug as
pnv_pci_ioda2_table_free_pages() does not reset neither
iommu_table::it_base nor ::it_size.

This was not exposed by SRIOV as it uses different code path via
pnv_pcibios_sriov_disable().

IODA1 does not inialize it_ops::free so it does not have this issue.

Fixes: c5f7700bbd ("powerpc/powernv: Dynamically release PE")
Cc: stable@vger.kernel.org # v4.8+
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-06-03 20:40:25 +10:00
..
4xx powerpc/4xx: Fix error return code in ppc4xx_msi_probe() 2018-03-31 00:10:34 +11:00
8xx powerpc/8xx: fix cpm_cascade() dual end of interrupt 2018-03-13 15:50:28 +11:00
40x License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
44x powerpc/44x/fsp2: Add irq error handlers 2017-12-11 13:03:34 +11:00
52xx powerpc/mpc52xx_gpt: make use of raw_spinlock variants 2018-01-27 21:12:04 +11:00
82xx License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
83xx powerpc: remove retired sbc834x support 2018-05-03 22:32:30 +10:00
85xx powerpc/64: Use array of paca pointers and allocate pacas individually 2018-03-30 23:34:23 +11:00
86xx powerpc: Use pr_warn instead of pr_warning 2017-12-04 11:54:34 +11:00
512x powerpc: Use pr_warn instead of pr_warning 2017-12-04 11:54:34 +11:00
amigaone License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cell powerpc/cell/spufs: Change return type to vm_fault_t 2018-05-14 23:10:34 +10:00
chrp powerpc/chrp/time: Make some functions static, add missing header include 2018-05-25 12:04:45 +10:00
embedded6xx powerpc/wii: Make hlwd_pic_init function static 2018-05-25 12:04:39 +10:00
maple powerpc: Set I/O port resource types correctly 2017-12-18 23:07:45 -06:00
pasemi powerpc updates for 4.16 2018-02-02 10:01:04 -08:00
powermac powerpc/powermac: Add missing prototype for note_bootable_part() 2018-05-25 12:04:42 +10:00
powernv powerpc/powernv/ioda2: Remove redundant free of TCE pages 2018-06-03 20:40:25 +10:00
ps3 powerpc/64: Fix strncpy() related build failures with GCC 8.1 2018-06-03 20:40:24 +10:00
pseries powerpc/xive: shutdown XIVE when kexec or kdump is performed 2018-05-10 23:25:09 +10:00
fsl_uli1575.c
Kconfig powerpc/cell: Remove axonram driver 2018-01-28 17:00:36 +11:00
Kconfig.cputype powerpc/book3s64: Enable split pmd ptlock. 2018-05-15 22:29:12 +10:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00