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ath9k_htc: Fix module unloading issue 

The maximum number of packets in a single buffer in
stream mode is 10. The driver currently uses 8 - which
caused stack corruption, in the absence of any kind
of OOB checking.

Fixing this to the correct value of 10 fixes the module
unload issue.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Tested-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Sujith 2010-04-06 15:28:15 +05:30 committed by John W. Linville
parent 66b10e33f7
commit c503269a0f
2 changed files with 2 additions and 1 deletions
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2
drivers/net/wireless/ath/ath9k/hif_usb.c
View File

@ -324,7 +324,7 @@ static struct ath9k_htc_hif hif_usb = {
static void ath9k_hif_usb_rx_stream(struct hif_device_usb *hif_dev,
struct sk_buff *skb)
{
struct sk_buff *nskb, *skb_pool[8];
struct sk_buff *nskb, *skb_pool[MAX_PKT_NUM_IN_TRANSFER];
int index = 0, i = 0, chk_idx, len = skb->len;
int rx_remain_len = 0, rx_pkt_len = 0;
u16 pkt_len, pkt_tag, pool_index = 0;

1
drivers/net/wireless/ath/ath9k/hif_usb.h
View File

@ -34,6 +34,7 @@
#define MAX_RX_URB_NUM 8
#define MAX_RX_BUF_SIZE 16384
#define MAX_PKT_NUM_IN_TRANSFER 10
#define MAX_REG_OUT_URB_NUM 1
#define MAX_REG_OUT_BUF_NUM 8