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![]() The root cause of panic is the num_pm of nfit_test1 is wrong. Though 1 is specified for num_pm at nfit_test_init(), it must be 2, because nfit_test1->spa_set[] array has 2 elements. Since the array is smaller than expected, the driver breaks other area. (it is often the link list of devres). As a result, panic occurs like the following example. CPU: 4 PID: 2233 Comm: lt-libndctl Tainted: G O 4.12.0-rc1+ #12 RIP: 0010:__list_del_entry_valid+0x6c/0xa0 Call Trace: release_nodes+0x76/0x260 devres_release_all+0x3c/0x50 device_release_driver_internal+0x159/0x200 device_release_driver+0x12/0x20 bus_remove_device+0xfd/0x170 device_del+0x1e8/0x330 platform_device_del+0x28/0x90 platform_device_unregister+0x12/0x30 nfit_test_exit+0x2a/0x93b [nfit_test] Cc: <stable@vger.kernel.org> Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> |
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