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can: gs_usb: gs_usb_receive_bulk_callback(): count RX overflow errors also in case of OOM

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In case of an RX overflow error from the CAN controller and an OOM
where no skb can be allocated, the error counters are not incremented.

Fix this by first incrementing the error counters and then allocate
the skb.

Fixes: d08e973a77 ("can: gs_usb: Added support for the GS_USB CAN devices")
Link: https://lore.kernel.org/all/20230718-gs_usb-cleanups-v1-7-c3b9154ec605@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Marc Kleine-Budde
2023-07-04 11:23:37 +02:00
parent 55ad95d944
commit 6c8bc15f02
1 changed files with 3 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/net/can/usb/gs_usb.c
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@@ -631,6 +631,9 @@ static void gs_usb_receive_bulk_callback(struct urb *urb)
}
if (hf->flags & GS_CAN_FLAG_OVERFLOW) {
stats->rx_over_errors++;
stats->rx_errors++;
skb = alloc_can_err_skb(netdev, &cf);
if (!skb)
goto resubmit_urb;
@@ -638,8 +641,6 @@ static void gs_usb_receive_bulk_callback(struct urb *urb)
cf->can_id |= CAN_ERR_CRTL;
cf->len = CAN_ERR_DLC;
cf->data[1] = CAN_ERR_CRTL_RX_OVERFLOW;
stats->rx_over_errors++;
stats->rx_errors++;
netif_rx(skb);
}