On 05.02.2014 [16:20:45 -0200], Thadeu Lima de Souza Cascardo wrote:
> Commit f5c57710dd62dd06f176934a8b4b8accbf00f9f8 ("powerpc/eeh: Use
> partial hotplug for EEH unaware drivers") introduces eeh_rmv_device,
> which may grab a reference to a driver, but not release it.
>
> That prevents a driver from being removed after it has gone through EEH
> recovery.
>
> This patch drops the reference if it was taken.
>
> Signed-off-by: Thadeu Lima de Souza Cascardo <casca...@linux.vnet.ibm.com>
> Acked-by: Gavin Shan <sha...@linux.vnet.ibm.com>
> ---
> arch/powerpc/kernel/eeh_driver.c | 8 ++++++--
> 1 files changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/arch/powerpc/kernel/eeh_driver.c
> b/arch/powerpc/kernel/eeh_driver.c
> index 7bb30dc..fdc679d 100644
> --- a/arch/powerpc/kernel/eeh_driver.c
> +++ b/arch/powerpc/kernel/eeh_driver.c
> @@ -362,9 +362,13 @@ static void *eeh_rmv_device(void *data, void *userdata)
> */
> if (!dev || (dev->hdr_type & PCI_HEADER_TYPE_BRIDGE))
> return NULL;
> +
This appears to be unnecessary whitespace change?
-Nish
> driver = eeh_pcid_get(dev);
> - if (driver && driver->err_handler)
> - return NULL;
> + if (driver) {
> + eeh_pcid_put(dev);
> + if (driver->err_handler)
> + return NULL;
> + }
>
> /* Remove it from PCI subsystem */
> pr_debug("EEH: Removing %s without EEH sensitive driver\n",
> --
> 1.7.1
>
> _______________________________________________
> Linuxppc-dev mailing list
> Linuxppc-dev@lists.ozlabs.org
> https://lists.ozlabs.org/listinfo/linuxppc-dev
>
_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@lists.ozlabs.org
https://lists.ozlabs.org/listinfo/linuxppc-dev
