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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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2d5db0be4c
The acpi device callbacks add, start, remove, suspend and resume can
never be called with a NULL acpi_device. Each callsite in acpi/scan.c
has to dereference the device in order to get the ops structure, e.g.
struct acpi_device *acpi_dev = to_acpi_device(dev);
struct acpi_driver *acpi_drv = acpi_dev->driver;
if (acpi_drv && acpi_drv->ops.suspend)
return acpi_drv->ops.suspend(acpi_dev, state);
Remove all checks for acpi_dev == NULL within these callbacks.
Also remove the checks for acpi_driver_data(acpi_dev) == NULL. None of
these checks could fail unless the driver does something strange
(which none of them do), the acpi core did something terribly wrong,
or we have a memory corruption issue. If this does happen then it's
best to dereference the pointer and crash noisily.
Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Signed-off-by: Len Brown <len.brown@intel.com>
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|---|---|---|
| .. | ||
| acer-wmi.c | ||
| acerhdf.c | ||
| asus_acpi.c | ||
| asus-laptop.c | ||
| compal-laptop.c | ||
| dell-laptop.c | ||
| dell-wmi.c | ||
| eeepc-laptop.c | ||
| fujitsu-laptop.c | ||
| hp-wmi.c | ||
| intel_menlow.c | ||
| Kconfig | ||
| Makefile | ||
| msi-laptop.c | ||
| panasonic-laptop.c | ||
| sony-laptop.c | ||
| tc1100-wmi.c | ||
| thinkpad_acpi.c | ||
| topstar-laptop.c | ||
| toshiba_acpi.c | ||
| wmi.c | ||