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| /openbmc/linux/arch/powerpc/kernel/ |
| H A D | rtas_flash.c | diff ad18a364f186e085ea3194c1900d970d0cee8fad Thu Feb 07 19:18:36 CST 2013 Vasant Hegde <hegdevasant@linux.vnet.ibm.com> powerpc/rtas_flash: Free kmem upon module exit
Memory allocated to rtas_firmware_flash_list in rtas_flash_write
is not freed during module exit. We hit below call trace if we
unload rtas_flash module after loading new firmware image and
before rebooting the system.
Call trace:
----------
Feb 6 08:42:10 eagle3 kernel: kmem_cache_destroy rtas_flash_cache: Slab cache still has objects
Feb 6 08:42:10 eagle3 kernel: Call Trace:
Feb 6 08:42:10 eagle3 kernel: [c00000001c303b40] [c000000000014940] .show_stack+0x70/0x1c0 (unreliable)
Feb 6 08:42:10 eagle3 kernel: [c00000001c303bf0] [c000000000199bec] .kmem_cache_destroy+0x15c/0x170
Feb 6 08:42:10 eagle3 kernel: [c00000001c303c90] [d000000006fa1208] .rtas_flash_cleanup+0x3c/0x80 [rtas_flash]
Feb 6 08:42:10 eagle3 kernel: [c00000001c303d20] [c0000000000f8970] .SyS_delete_module+0x1d0/0x2e0
Feb 6 08:42:10 eagle3 kernel: [c00000001c303e30] [c000000000009954] syscall_exit+0x0/0x94
This patch frees rtas_firmware_flash_list during module exit.
Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
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