Re: [PATCH v6 11/11] PCI: endpoint: Add MSI set maximum restriction.

[Kishon Vijay Abraham I]

On Thursday 21 June 2018 09:31 PM, Gustavo Pimentel wrote:
> Add pci_epc_set_msi() maximum 32 interrupts validation.
> 
> Signed-off-by: Gustavo Pimentel <gustavo.pimentel@xxxxxxxxxxxx>
Acked-by: Kishon Vijay Abraham I <kishon@xxxxxx>
> ---
> Change v4->v5:
>  - New patch file.
> Change v5->v6:
>  - Nothing changed, just to follow the patch set version.
> 
>  drivers/pci/endpoint/pci-epc-core.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/pci/endpoint/pci-epc-core.c b/drivers/pci/endpoint/pci-epc-core.c
> index c72e656..094dcc3 100644
> --- a/drivers/pci/endpoint/pci-epc-core.c
> +++ b/drivers/pci/endpoint/pci-epc-core.c
> @@ -201,7 +201,8 @@ int pci_epc_set_msi(struct pci_epc *epc, u8 func_no, u8 interrupts)
>  	u8 encode_int;
>  	unsigned long flags;
>  
> -	if (IS_ERR_OR_NULL(epc) || func_no >= epc->max_functions)
> +	if (IS_ERR_OR_NULL(epc) || func_no >= epc->max_functions ||
> +	    interrupts > 32)
>  		return -EINVAL;
>  
>  	if (!epc->ops->set_msi)
>