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brcmfmac: fix use of dev_kfree_skb() in irq context 

The USB part of the brcmfmac did a dev_kfree_skb() that resulted
in a warning in net/core/skbuff.c:

Jul 11 04:53:33 lb-bun-10 kernel: [53282.667745] WARNING: at
net/core/skbuff.c:490 skb_release_head_state+0xcc/0xe0()

The brcmutil modules provides brcmu_pkt_buf_free_skb() which takes
the context into account. This patch makes use of this function
instead of dev_kfree_skb().

Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Arend van Spriel 2012-08-30 10:05:34 +02:00 committed by John W. Linville
parent 5d9b6f2639
commit 01e3331b30
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/net/wireless/brcm80211/brcmfmac/usb.c
View File

@ -519,7 +519,7 @@ static void brcmf_usb_tx_complete(struct urb *urb)
else
devinfo->bus_pub.bus->dstats.tx_errors++;
dev_kfree_skb(req->skb);
brcmu_pkt_buf_free_skb(req->skb);
req->skb = NULL;
brcmf_usb_enq(devinfo, &devinfo->tx_freeq, req);
@ -540,7 +540,7 @@ static void brcmf_usb_rx_complete(struct urb *urb)
devinfo->bus_pub.bus->dstats.rx_packets++;
} else {
devinfo->bus_pub.bus->dstats.rx_errors++;
dev_kfree_skb(skb);
brcmu_pkt_buf_free_skb(skb);
brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req);
return;
}
@ -556,7 +556,7 @@ static void brcmf_usb_rx_complete(struct urb *urb)
brcmf_usb_rx_refill(devinfo, req);
}
} else {
dev_kfree_skb(skb);
brcmu_pkt_buf_free_skb(skb);
}
return;
@ -588,7 +588,7 @@ static void brcmf_usb_rx_refill(struct brcmf_usbdev_info *devinfo,
if (ret == 0) {
brcmf_usb_enq(devinfo, &devinfo->rx_postq, req);
} else {
dev_kfree_skb(req->skb);
brcmu_pkt_buf_free_skb(req->skb);
req->skb = NULL;
brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req);
}