spi/bcm63xx: Ensure that memory is freed only after it is no longer used
authorGuenter Roeck <linux@roeck-us.net>
Fri, 10 Aug 2012 20:56:27 +0000 (13:56 -0700)
committerMark Brown <broonie@opensource.wolfsonmicro.com>
Mon, 13 Aug 2012 12:29:20 +0000 (13:29 +0100)
commit1f68237865b2f55badbb3f73792d573899a62475
treea411b3fe35a39e8a4f6d3cb25939eead5e85501a
parent37a2d84a38df16e614bbfbb18a5155ebd8256938
spi/bcm63xx: Ensure that memory is freed only after it is no longer used

The call to spi_unregister_master() in the device remove function frees device
memory, and with it any device local data. However, device local data is still
accessed after the call to spi_unregister_master().

Acquire a reference to the SPI device and release it after cleanup is complete
to solve the problem.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
drivers/spi/spi-bcm63xx.c