b43: fix b43_plcp_get_bitrate_idx_ofdm return type

upstream commit: a3c0b87c4f21911fb7185902dd13f0e3cd7f33f7

This patch fixes the return type of b43_plcp_get_bitrate_idx_ofdm. If
the plcp contains an error, the function return value is 255 instead
of -1, and the packet was not dropped. This causes a warning in
__ieee80211_rx function because rate idx is out of range.

Cc: stable@kernel.org
Signed-off-by: Lorenzo Nava <navalorenx@gmail.com>
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>

diff --git a/drivers/net/wireless/b43/xmit.c b/drivers/net/wireless/b43/xmit.c
index eae9b8052658c3c28de328df9016a0bb82917ff8..12069e50847ea44d1f535ba58d0cf4282dfcef99 100644 (file)
--- a/drivers/net/wireless/b43/xmit.c
+++ b/drivers/net/wireless/b43/xmit.c
@@ -50,7 +50,7 @@ static int b43_plcp_get_bitrate_idx_cck(struct b43_plcp_hdr6 *plcp)
 }
 
 /* Extract the bitrate index out of an OFDM PLCP header. */
-static u8 b43_plcp_get_bitrate_idx_ofdm(struct b43_plcp_hdr6 *plcp, bool aphy)
+static int b43_plcp_get_bitrate_idx_ofdm(struct b43_plcp_hdr6 *plcp, bool aphy)
 {
        int base = aphy ? 0 : 4;