Commits
Vasant Hegde committed ad18a364f18
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>