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This replaces dm_remove_devices_flags() calls in all boot implementations to ensure non vital devices are consistently removed first. All boot implementation except arch/arm/lib/bootm.c currently just call dm_remove_devices_flags(DM_REMOVE_ACTIVE_ALL). This can result in crashes when dependencies between devices exists. The driver model's design document describes DM_FLAG_VITAL as "indicates that the device is 'vital' to the operation of other devices". Device removal at boot should follow this. Instead of adding dm_remove_devices_flags() with (DM_REMOVE_ACTIVE_ALL | DM_REMOVE_NON_VITAL) everywhere add dm_remove_devices_active() which does this. Fixes a NULL pointer deref in the apple dart IOMMU driver during EFI boot. The xhci-pci (driver which depends on the IOMMU to work) removes its mapping on removal. This explodes when the IOMMU device was removed first. dm_remove_devices_flags() is kept since it is used for testing of device_remove() calls in dm. Signed-off-by: Janne Grunau <j@jannau.net> |
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.. | ||
acpi.c | ||
device-remove.c | ||
device.c | ||
devres.c | ||
dump.c | ||
fdtaddr.c | ||
Kconfig | ||
lists.c | ||
Makefile | ||
of_access.c | ||
of_addr.c | ||
of_extra.c | ||
ofnode.c | ||
read.c | ||
read_extra.c | ||
regmap.c | ||
root.c | ||
simple-bus.c | ||
simple-pm-bus.c | ||
syscon-uclass.c | ||
tag.c | ||
uclass.c | ||
util.c |