Tony Lindgren bd905fed87 iommu/omap: Fix regression in probe for NULL pointer dereference ... [ Upstream commit 71ff461c3f41f6465434b9e980c01782763e7ad8 ] Commit 3f6634d997db ("iommu: Use right way to retrieve iommu_ops") started triggering a NULL pointer dereference for some omap variants: __iommu_probe_device from probe_iommu_group+0x2c/0x38 probe_iommu_group from bus_for_each_dev+0x74/0xbc bus_for_each_dev from bus_iommu_probe+0x34/0x2e8 bus_iommu_probe from bus_set_iommu+0x80/0xc8 bus_set_iommu from omap_iommu_init+0x88/0xcc omap_iommu_init from do_one_initcall+0x44/0x24 This is caused by omap iommu probe returning 0 instead of ERR_PTR(-ENODEV) as noted by Jason Gunthorpe <jgg@ziepe.ca>. Looks like the regression already happened with an earlier commit 6785eb9105 ("iommu/omap: Convert to probe/release_device() call-backs") that changed the function return type and missed converting one place. Cc: Drew Fustini <dfustini@baylibre.com> Cc: Lu Baolu <baolu.lu@linux.intel.com> Cc: Suman Anna <s-anna@ti.com> Suggested-by: Jason Gunthorpe <jgg@ziepe.ca> Fixes: 6785eb9105 ("iommu/omap: Convert to probe/release_device() call-backs") Fixes: 3f6634d997db ("iommu: Use right way to retrieve iommu_ops") Signed-off-by: Tony Lindgren <tony@atomide.com> Tested-by: Drew Fustini <dfustini@baylibre.com> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Link: https://lore.kernel.org/r/20220331062301.24269-1-tony@atomide.com Signed-off-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-04-13 21:01:07 +02:00
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amd	iommu/amd: Recover from event log overflow	2022-03-08 19:09:31 +01:00
arm	iommu/arm-smmu-v3: fix event handling soft lockup	2022-04-13 21:00:56 +02:00
intel	iommu/vt-d: Fix potential memory leak in intel_setup_irq_remapping()	2022-02-08 18:30:37 +01:00
dma-iommu.c
exynos-iommu.c
fsl_pamu_domain.c
fsl_pamu_domain.h
fsl_pamu.c
fsl_pamu.h
hyperv-iommu.c
io-pgtable-arm-v7s.c
io-pgtable-arm.c
io-pgtable-arm.h
io-pgtable.c
ioasid.c
iommu-debugfs.c
iommu-sysfs.c
iommu-traces.c
iommu.c	iommu: Fix potential use-after-free during probe	2022-02-16 12:54:31 +01:00
iova.c	iommu/iova: Improve 32-bit free space estimate	2022-04-08 14:39:48 +02:00
ipmmu-vmsa.c	iommu/ipmmu-vmsa: Check for error num after setting mask	2022-04-08 14:40:15 +02:00
irq_remapping.c
irq_remapping.h
Kconfig
Makefile
msm_iommu_hw-8xxx.h
msm_iommu.c
msm_iommu.h
mtk_iommu_v1.c
mtk_iommu.c
mtk_iommu.h
of_iommu.c
omap-iommu-debug.c
omap-iommu.c	iommu/omap: Fix regression in probe for NULL pointer dereference	2022-04-13 21:01:07 +02:00
omap-iommu.h
omap-iopgtable.h
rockchip-iommu.c
s390-iommu.c
sun50i-iommu.c
tegra-gart.c
tegra-smmu.c
virtio-iommu.c