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authorBruce Allan <bruce.w.allan@intel.com>2010-01-07 16:31:54 +0000
committerDavid S. Miller <davem@davemloft.net>2010-01-08 00:35:31 -0800
commitca777f9c098f1ea1c9ec61318cc909d0c8f465e1 (patch)
treee6308bf4d3833bc4cfbe707cd83d80e9bedcf688
parentf464ba87fe7f346e270239354eb0d38f7a3b3e6b (diff)
downloadlinux-ca777f9c098f1ea1c9ec61318cc909d0c8f465e1.tar.gz
e1000e: e1000e_enable_tx_pkt_filtering() returns wrong value
e1000e_enable_tx_pkt_filtering() will return a non-zero value if the
driver fails to enable the manageability interface on the host for
any reason; instead it should retun zero to indicate filtering has been
disabled.  Also provide a single exit point for the function.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/e1000e/lib.c16
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/net/e1000e/lib.c b/drivers/net/e1000e/lib.c
index 56b59e4a6871..97649bf53b05 100644
--- a/drivers/net/e1000e/lib.c
+++ b/drivers/net/e1000e/lib.c
@@ -2301,10 +2301,12 @@ bool e1000e_enable_tx_pkt_filtering(struct e1000_hw *hw)
 	s32 ret_val, hdr_csum, csum;
 	u8 i, len;
 
+	hw->mac.tx_pkt_filtering = true;
+
 	/* No manageability, no filtering */
 	if (!e1000e_check_mng_mode(hw)) {
 		hw->mac.tx_pkt_filtering = false;
-		return 0;
+		goto out;
 	}
 
 	/*
@@ -2312,9 +2314,9 @@ bool e1000e_enable_tx_pkt_filtering(struct e1000_hw *hw)
 	 * reason, disable filtering.
 	 */
 	ret_val = e1000_mng_enable_host_if(hw);
-	if (ret_val != 0) {
+	if (ret_val) {
 		hw->mac.tx_pkt_filtering = false;
-		return ret_val;
+		goto out;
 	}
 
 	/* Read in the header.  Length and offset are in dwords. */
@@ -2333,17 +2335,17 @@ bool e1000e_enable_tx_pkt_filtering(struct e1000_hw *hw)
 	 */
 	if ((hdr_csum != csum) || (hdr->signature != E1000_IAMT_SIGNATURE)) {
 		hw->mac.tx_pkt_filtering = true;
-		return 1;
+		goto out;
 	}
 
 	/* Cookie area is valid, make the final check for filtering. */
 	if (!(hdr->status & E1000_MNG_DHCP_COOKIE_STATUS_PARSING)) {
 		hw->mac.tx_pkt_filtering = false;
-		return 0;
+		goto out;
 	}
 
-	hw->mac.tx_pkt_filtering = true;
-	return 1;
+out:
+	return hw->mac.tx_pkt_filtering;
 }
 
 /**