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[v5,2/3] PCI: endpoint: Populate func_no before calling pci_epc_add_epf()

Message ID 20171214130147.1790-3-niklas.cassel@axis.com (mailing list archive)
State New, archived
Delegated to: Bjorn Helgaas
Headers show

Commit Message

Niklas Cassel Dec. 14, 2017, 1:01 p.m. UTC
func_no is a member of struct pci_epf.
struct pci_epf is used as an argument to pci_epc_add_epf(),
therefore func_no should be populated before calling pci_epc_add_epf().

Fixes: d74679911610 ("PCI: endpoint: Introduce configfs entry for configuring EP functions")
Signed-off-by: Niklas Cassel <niklas.cassel@axis.com>
Suggested-by: Kishon Vijay Abraham I <kishon@ti.com>
---
 drivers/pci/endpoint/pci-ep-cfs.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

Comments

Kishon Vijay Abraham I Dec. 14, 2017, 1:13 p.m. UTC | #1
On Thursday 14 December 2017 06:31 PM, Niklas Cassel wrote:
> func_no is a member of struct pci_epf.
> struct pci_epf is used as an argument to pci_epc_add_epf(),
> therefore func_no should be populated before calling pci_epc_add_epf().
> 
> Fixes: d74679911610 ("PCI: endpoint: Introduce configfs entry for configuring EP functions")
> Signed-off-by: Niklas Cassel <niklas.cassel@axis.com>
> Suggested-by: Kishon Vijay Abraham I <kishon@ti.com>

Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
> ---
>  drivers/pci/endpoint/pci-ep-cfs.c | 14 ++++++--------
>  1 file changed, 6 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/pci/endpoint/pci-ep-cfs.c b/drivers/pci/endpoint/pci-ep-cfs.c
> index 4f74386c1ced..e8f65eb51c1a 100644
> --- a/drivers/pci/endpoint/pci-ep-cfs.c
> +++ b/drivers/pci/endpoint/pci-ep-cfs.c
> @@ -97,22 +97,20 @@ static int pci_epc_epf_link(struct config_item *epc_item,
>  {
>  	int ret;
>  	u32 func_no = 0;
> -	struct pci_epc *epc;
> -	struct pci_epf *epf;
>  	struct pci_epf_group *epf_group = to_pci_epf_group(epf_item);
>  	struct pci_epc_group *epc_group = to_pci_epc_group(epc_item);
> -
> -	epc = epc_group->epc;
> -	epf = epf_group->epf;
> -	ret = pci_epc_add_epf(epc, epf);
> -	if (ret)
> -		goto err_add_epf;
> +	struct pci_epc *epc = epc_group->epc;
> +	struct pci_epf *epf = epf_group->epf;
>  
>  	func_no = find_first_zero_bit(&epc_group->function_num_map,
>  				      sizeof(epc_group->function_num_map));
>  	set_bit(func_no, &epc_group->function_num_map);
>  	epf->func_no = func_no;
>  
> +	ret = pci_epc_add_epf(epc, epf);
> +	if (ret)
> +		goto err_add_epf;
> +
>  	ret = pci_epf_bind(epf);
>  	if (ret)
>  		goto err_epf_bind;
>
diff mbox

Patch

diff --git a/drivers/pci/endpoint/pci-ep-cfs.c b/drivers/pci/endpoint/pci-ep-cfs.c
index 4f74386c1ced..e8f65eb51c1a 100644
--- a/drivers/pci/endpoint/pci-ep-cfs.c
+++ b/drivers/pci/endpoint/pci-ep-cfs.c
@@ -97,22 +97,20 @@  static int pci_epc_epf_link(struct config_item *epc_item,
 {
 	int ret;
 	u32 func_no = 0;
-	struct pci_epc *epc;
-	struct pci_epf *epf;
 	struct pci_epf_group *epf_group = to_pci_epf_group(epf_item);
 	struct pci_epc_group *epc_group = to_pci_epc_group(epc_item);
-
-	epc = epc_group->epc;
-	epf = epf_group->epf;
-	ret = pci_epc_add_epf(epc, epf);
-	if (ret)
-		goto err_add_epf;
+	struct pci_epc *epc = epc_group->epc;
+	struct pci_epf *epf = epf_group->epf;
 
 	func_no = find_first_zero_bit(&epc_group->function_num_map,
 				      sizeof(epc_group->function_num_map));
 	set_bit(func_no, &epc_group->function_num_map);
 	epf->func_no = func_no;
 
+	ret = pci_epc_add_epf(epc, epf);
+	if (ret)
+		goto err_add_epf;
+
 	ret = pci_epf_bind(epf);
 	if (ret)
 		goto err_epf_bind;