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| author | Andy Shevchenko | 2021-03-22 18:31:00 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki | 2021-03-22 17:45:53 +0100 |
| commit | eb50aaf960e3bedfef79063411ffd670da94b84b (patch) | |
| tree | 50d4df51a5033cfb2832c29ebb7c342ffce85190 /LICENSES | |
| parent | 0d02ec6b3136c73c09e7859f0d0e4e2c4c07b49b (diff) | |
ACPI: scan: Use unique number for instance_no
The decrementation of acpi_device_bus_id->instance_no
in acpi_device_del() is incorrect, because it may cause
a duplicate instance number to be allocated next time
a device with the same acpi_device_bus_id is added.
Replace above mentioned approach by using IDA framework.
While at it, define the instance range to be [0, 4096).
Fixes: e49bd2dd5a50 ("ACPI: use PNPID:instance_no as bus_id of ACPI device")
Fixes: ca9dc8d42b30 ("ACPI / scan: Fix acpi_bus_id_list bookkeeping")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: 4.10+ <stable@vger.kernel.org> # 4.10+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'LICENSES')
0 files changed, 0 insertions, 0 deletions