Ashutosh Dixit f38e87e8c8 misc: mic: Fix crash when MIC reset is invoked in RESET_FAILED state ... This patch fixes the following crash seen when MIC reset is invoked in RESET_FAILED state due to device_del being called a second time on an already deleted device: [<ffffffff813b2295>] device_del+0x45/0x1d0 [<ffffffff813b243e>] device_unregister+0x1e/0x60 [<ffffffffa040f1c2>] scif_unregister_device+0x12/0x20 [scif_bus] [<ffffffffa042f75a>] cosm_stop+0xaa/0xe0 [mic_cosm] [<ffffffffa042f844>] cosm_reset_trigger_work+0x14/0x20 [mic_cosm] The fix consists in realizing that because cosm_reset changes the state to MIC_RESETTING, cosm_stop needs the previous state, before it changed to MIC_RESETTING, to decide whether a hw_ops->stop had previously been issued. This is now provided in a new cosm_device member cdev->prev_state. Reviewed-by: Sudeep Dutt <sudeep.dutt@intel.com> Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2016-02-07 22:53:40 -08:00
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cosm_debugfs.c	misc: mic: Fix randconfig build error	2015-10-17 21:42:29 -07:00
cosm_main.c	misc: mic: Fix crash when MIC reset is invoked in RESET_FAILED state	2016-02-07 22:53:40 -08:00
cosm_main.h
cosm_scif_server.c
cosm_sysfs.c
Makefile