Re: [PATCH v2 1/2] drivers: net: ethernet: 3com: fix return value

Sergei Shtylyov
2016-12-24T19:07:02Z

Hello!

On 12/24/2016 03:02 PM, Thomas Preisner wrote:

> In a few cases the err-variable is not set to a negative error code if a
> function call fails and thus 0 is returned instead.
> It may be better to set err to the appropriate negative error code
> before returning.
>
> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188841
>
> Reported-by: Pan Bian <bianpan2016@163.com>
> Signed-off-by: Thomas Preisner <thomas.preisner+linux@fau.de>
> Signed-off-by: Milan Stephan <milan.stephan+linux@fau.de>
> ---
> drivers/net/ethernet/3com/typhoon.c | 7 +++++--
> 1 file changed, 5 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/net/ethernet/3com/typhoon.c b/drivers/net/ethernet/3com/typhoon.c
> index a0cacbe..c88b88a 100644
> --- a/drivers/net/ethernet/3com/typhoon.c
> +++ b/drivers/net/ethernet/3com/typhoon.c
[...]
> @@ -2411,7 +2412,8 @@ typhoon_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
> * later when we print out the version reported.
> */
> INIT_COMMAND_WITH_RESPONSE(&xp_cmd, TYPHOON_CMD_READ_VERSIONS);
> - if(typhoon_issue_command(tp, 1, &xp_cmd, 3, xp_resp) < 0) {
> + err = typhoon_issue_command(tp, 1, &xp_cmd, 3, xp_resp);
> + if(err < 0) {

Need a space between *if* and (. Run your patches thru
scripts/checkpatch.pl before posting, please.

> err_msg = "Could not get Sleep Image version";
> goto error_out_reset;
> }
> @@ -2453,7 +2455,8 @@ typhoon_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
> dev->features = dev->hw_features |
> NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_RXCSUM;
>
> - if(register_netdev(dev) < 0) {
> + err = register_netdev(dev);
> + if(err < 0) {

Same here.

[...]

MBR, Sergei