b43: Drop packets that we are not able to encrypt
We must not transmit packets we're not able to encrypt.
This fixes a bug where in a tiny timeframe after machine resume
packets can get sent unencrypted and might leak information.
This also fixes three small resource leakages I spotted while fixing
the security problem. Properly deallocate the DMA slots in any DMA
allocation error path.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/wireless/b43/xmit.h b/drivers/net/wireless/b43/xmit.h
index ca2a2ab..4176503 100644
--- a/drivers/net/wireless/b43/xmit.h
+++ b/drivers/net/wireless/b43/xmit.h
@@ -174,11 +174,11 @@
}
-void b43_generate_txhdr(struct b43_wldev *dev,
- u8 * txhdr,
- const unsigned char *fragment_data,
- unsigned int fragment_len,
- const struct ieee80211_tx_control *txctl, u16 cookie);
+int b43_generate_txhdr(struct b43_wldev *dev,
+ u8 * txhdr,
+ const unsigned char *fragment_data,
+ unsigned int fragment_len,
+ const struct ieee80211_tx_control *txctl, u16 cookie);
/* Transmit Status */
struct b43_txstatus {