From patchwork Sat Aug 27 18:56:00 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Larry Finger X-Patchwork-Id: 1105212 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter2.kernel.org (8.14.4/8.14.4) with ESMTP id p7RIuLcX016830 for ; Sat, 27 Aug 2011 18:56:21 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751249Ab1H0S4T (ORCPT ); Sat, 27 Aug 2011 14:56:19 -0400 Received: from mail-gx0-f174.google.com ([209.85.161.174]:56273 "EHLO mail-gx0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750908Ab1H0S4S (ORCPT ); Sat, 27 Aug 2011 14:56:18 -0400 Received: by gxk21 with SMTP id 21so3753587gxk.19 for ; Sat, 27 Aug 2011 11:56:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=sender:from:to:cc:subject:date:message-id:x-mailer:to; bh=An7vpaqMsJwyX9NeknWPcK3GlVg60VJEfZm7FT4ZgDY=; b=ECNGkQ5FD1lL/p6o2aDNmw3kPftYSiaXTeYyGFeC6VqC7y7VMuWZVPiHa6GAJGoLQ+ usMnGVo4qfh1EMDSjiecUVvAMRpNsDorKCcZTHJ5en3EPiq7eOvqGqUKpSmgoTuKVmnJ n7Xfadv3L8/ADoacrUQU/fd8XcbwtioxZQf44= Received: by 10.43.53.66 with SMTP id vp2mr2555267icb.92.1314471378034; Sat, 27 Aug 2011 11:56:18 -0700 (PDT) Received: from localhost.localdomain (cpe-65-28-92-85.kc.res.rr.com [65.28.92.85]) by mx.google.com with ESMTPS id ib5sm3233585icc.0.2011.08.27.11.56.16 (version=TLSv1/SSLv3 cipher=OTHER); Sat, 27 Aug 2011 11:56:17 -0700 (PDT) From: Larry Finger Cc: Larry Finger , linux-wireless@vger.kernel.org Subject: [PATCH] ath9k: Fix a smatch warnings Date: Sat, 27 Aug 2011 13:56:00 -0500 Message-Id: <1314471360-861-1-git-send-email-Larry.Finger@lwfinger.net> X-Mailer: git-send-email 1.7.3.4 To: linville@tuxdriver.com Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter2.kernel.org [140.211.167.43]); Sat, 27 Aug 2011 18:56:21 +0000 (UTC) Smatch shows the following warnings: CHECK drivers/net/wireless/ath/ath9k/htc_drv_main.c drivers/net/wireless/ath/ath9k/htc_drv_main.c +1315 ath9k_htc_configure_filter(27) warn: inconsistent returns mutex:&priv->mutex: locked (1303) unlocked (1315) CHECK drivers/net/wireless/ath/ath9k/ar9003_eeprom.c drivers/net/wireless/ath/ath9k/ar9003_eeprom.c +3321 ar9300_eeprom_restore_internal(20) warn: returning -1 instead of -ENOMEM is sloppy Signed-off-by: Larry Finger --- John, This is next material. Larry --- To ath9k developers: Smatch also show the following information, which I have not addressed: CHECK drivers/net/wireless/ath/key.c drivers/net/wireless/ath/key.c +546 ath_key_config(77) info: why not propagate 'idx' from ath_reserve_key_cache_slot() instead of -28? CHECK drivers/net/wireless/ath/ath9k/hif_usb.c drivers/net/wireless/ath/ath9k/hif_usb.c +760 ath9k_hif_usb_dealloc_tx_urbs(23) error: double free of 'tx_buf->buf' CHECK drivers/net/wireless/ath/ath9k/htc_drv_beacon.c drivers/net/wireless/ath/ath9k/htc_drv_beacon.c +339 ath9k_htc_send_buffered(44) error: double lock 'bottom_half:' drivers/net/wireless/ath/ath9k/htc_drv_beacon.c +347 ath9k_htc_send_buffered(52) error: double unlock 'bottom_half:' CHECK drivers/net/wireless/ath/ath9k/ar9003_phy.c drivers/net/wireless/ath/ath9k/ar9003_phy.c +209 ar9003_hw_spur_mitigate_mrc_cck(40) error: potential null derefence 'spur_fbin_ptr'. CHECK drivers/net/wireless/ath/ath9k/ar9003_paprd.c drivers/net/wireless/ath/ath9k/ar9003_paprd.c +164 ar9003_paprd_setup_single_table(28) info: why not propagate 'training_power' from ar9003_get_training_power_5g() instead of -34? --- --- drivers/net/wireless/ath/ath9k/ar9003_eeprom.c | 2 +- drivers/net/wireless/ath/ath9k/htc_drv_main.c | 1 + 2 files changed, 2 insertions(+), 1 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c index 3b4ae07..fc2d607 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c @@ -3318,7 +3318,7 @@ static int ar9300_eeprom_restore_internal(struct ath_hw *ah, word = kzalloc(2048, GFP_KERNEL); if (!word) - return -1; + return -ENOMEM; memcpy(mptr, &ar9300_default, mdata_size); diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c index 7212acb..2a3a2ce 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c @@ -1300,6 +1300,7 @@ static void ath9k_htc_configure_filter(struct ieee80211_hw *hw, if (priv->op_flags & OP_INVALID) { ath_dbg(ath9k_hw_common(priv->ah), ATH_DBG_ANY, "Unable to configure filter on invalid state\n"); + mutex_unlock(&priv->mutex); return; } ath9k_htc_ps_wakeup(priv);