Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=3d4bd24b019981394fabb465b0c7932924b83d65
Commit: 3d4bd24b019981394fabb465b0c7932924b83d65
Parent: 55b637c6a003a8c4850b41a2c2fd6942d8a7f530
Author: Florin Malita <[EMAIL PROTECTED]>
AuthorDate: Fri May 18 16:04:33 2007 -0400
Committer: John W. Linville <[EMAIL PROTECTED]>
CommitDate: Tue May 22 11:02:29 2007 -0400
[PATCH] libertas: skb dereferenced after netif_rx
In libertas_process_rxed_packet() and process_rxed_802_11_packet() the
skb is dereferenced after being passed to netif_rx (called from
libertas_upload_rx_packet). Spotted by Coverity (1658, 1659).
Also, libertas_upload_rx_packet() unconditionally returns 0 so the error
check is dead code - might as well take it out and change the signature.
Signed-off-by: Florin Malita <[EMAIL PROTECTED]>
Signed-off-by: John W. Linville <[EMAIL PROTECTED]>
---
drivers/net/wireless/libertas/decl.h | 2 +-
drivers/net/wireless/libertas/rx.c | 22 +++++-----------------
2 files changed, 6 insertions(+), 18 deletions(-)
diff --git a/drivers/net/wireless/libertas/decl.h
b/drivers/net/wireless/libertas/decl.h
index 606bdd0..dfe2764 100644
--- a/drivers/net/wireless/libertas/decl.h
+++ b/drivers/net/wireless/libertas/decl.h
@@ -46,7 +46,7 @@ u32 libertas_index_to_data_rate(u8 index);
u8 libertas_data_rate_to_index(u32 rate);
void libertas_get_fwversion(wlan_adapter * adapter, char *fwversion, int
maxlen);
-int libertas_upload_rx_packet(wlan_private * priv, struct sk_buff *skb);
+void libertas_upload_rx_packet(wlan_private * priv, struct sk_buff *skb);
/** The proc fs interface */
int libertas_process_rx_command(wlan_private * priv);
diff --git a/drivers/net/wireless/libertas/rx.c
b/drivers/net/wireless/libertas/rx.c
index d17924f..b19b5aa 100644
--- a/drivers/net/wireless/libertas/rx.c
+++ b/drivers/net/wireless/libertas/rx.c
@@ -136,7 +136,7 @@ static void wlan_compute_rssi(wlan_private * priv, struct
rxpd *p_rx_pd)
LEAVE();
}
-int libertas_upload_rx_packet(wlan_private * priv, struct sk_buff *skb)
+void libertas_upload_rx_packet(wlan_private * priv, struct sk_buff *skb)
{
lbs_pr_debug(1, "skb->data=%p\n", skb->data);
@@ -148,8 +148,6 @@ int libertas_upload_rx_packet(wlan_private * priv, struct
sk_buff *skb)
skb->ip_summed = CHECKSUM_UNNECESSARY;
netif_rx(skb);
-
- return 0;
}
/**
@@ -269,15 +267,11 @@ int libertas_process_rxed_packet(wlan_private * priv,
struct sk_buff *skb)
wlan_compute_rssi(priv, p_rx_pd);
lbs_pr_debug(1, "RX Data: size of actual packet = %d\n", skb->len);
- if (libertas_upload_rx_packet(priv, skb)) {
- lbs_pr_debug(1, "RX error: libertas_upload_rx_packet"
- " returns failure\n");
- ret = -1;
- goto done;
- }
priv->stats.rx_bytes += skb->len;
priv->stats.rx_packets++;
+ libertas_upload_rx_packet(priv, skb);
+
ret = 0;
done:
LEAVE();
@@ -438,17 +432,11 @@ static int process_rxed_802_11_packet(wlan_private *
priv, struct sk_buff *skb)
wlan_compute_rssi(priv, prxpd);
lbs_pr_debug(1, "RX Data: size of actual packet = %d\n", skb->len);
-
- if (libertas_upload_rx_packet(priv, skb)) {
- lbs_pr_debug(1, "RX error: libertas_upload_rx_packet "
- "returns failure\n");
- ret = -1;
- goto done;
- }
-
priv->stats.rx_bytes += skb->len;
priv->stats.rx_packets++;
+ libertas_upload_rx_packet(priv, skb);
+
ret = 0;
done:
LEAVE();
-
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