On Wed, 2017-02-15 at 23:22:32 UTC, Gavin Shan wrote:
> The WARN_ON() causes unnecessary backtrace when putting the parent
> slot, which is likely to be NULL.
>
> WARNING: CPU: 2 PID: 1071 at drivers/pci/hotplug/pnv_php.c:85 \
> pnv_php_release+0xcc/0x150 [pnv_php]
> :
> Call Trace:
> [c0000003bc007c10] [d00000000ad613c4] pnv_php_release+0x144/0x150 [pnv_php]
> [c0000003bc007c40] [c0000000006641d8] pci_hp_deregister+0x238/0x330
> [c0000003bc007cd0] [d00000000ad61440] pnv_php_unregister_one+0x70/0xa0 [pnv_php]
> [c0000003bc007d10] [d00000000ad614c0] pnv_php_unregister+0x50/0x80 [pnv_php]
> [c0000003bc007d40] [d00000000ad61e84] pnv_php_exit+0x50/0xcb4 [pnv_php]
> [c0000003bc007d70] [c00000000019499c] SyS_delete_module+0x1fc/0x2a0
> [c0000003bc007e30] [c00000000000b184] system_call+0x38/0xe0
>
> Cc: <stable@xxxxxxxxxxxxxxx> # v4.8+
> Fixes: 66725152fb9f ("PCI/hotplug: PowerPC PowerNV PCI hotplug driver")
> Signed-off-by: Gavin Shan <gwshan@xxxxxxxxxxxxxxxxxx>
> Reviewed-by: Andrew Donnellan <andrew.donnellan@xxxxxxxxxxx>
> Tested-by: Vaibhav Jain <vaibhav@xxxxxxxxxxxxxxxxxx>
Series applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/36c7c9da40c408a71e5e6bfe12e57d
cheers