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Kirill Kapranov 1a4327fbf4
spi: fix IDR collision on systems with both fixed and dynamic SPI bus numbers
On systems where some controllers get a dynamic ID assigned and some have
a fixed number (e.g. from ACPI tables), the current implementation might
run into an IDR collision: in case of a fixed bus number is gotten by a
driver (but not marked busy in IDR tree) and a driver with dynamic bus
number gets the same ID and predictably fails.

Fix this by means of checking-in fixed IDsin IDR as far as dynamic ones
at the moment of the controller registration.

Fixes: 9b61e30221 (spi: Pick spi bus number from Linux idr or spi alias)
Signed-off-by: Kirill Kapranov <kirill.kapranov@compulab.co.il>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
2018-08-15 15:44:07 +01:00
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Documentation spi: add DT bindings for UniPhier SPI controller 2018-08-01 10:15:25 +01:00
drivers spi: fix IDR collision on systems with both fixed and dynamic SPI bus numbers 2018-08-15 15:44:07 +01:00
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include spi: spi-mem: Constify spi_mem->name 2018-08-03 10:51:25 +01:00
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