From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pd0-f177.google.com ([209.85.192.177]:35875 "EHLO mail-pd0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752980AbbGXPXq (ORCPT ); Fri, 24 Jul 2015 11:23:46 -0400 Received: by pdjr16 with SMTP id r16so15345000pdj.3 for ; Fri, 24 Jul 2015 08:23:46 -0700 (PDT) From: Joo Aun Saw To: linux-iio@vger.kernel.org Cc: jic23@kernel.org, Joo Aun Saw Subject: [PATCH 1/2] tools: iio: Set caller's ci_array pointer to NULL after free Date: Sat, 25 Jul 2015 01:23:28 +1000 Message-Id: <1437751409-28837-2-git-send-email-jasaw@dius.com.au> In-Reply-To: <1437751409-28837-1-git-send-email-jasaw@dius.com.au> References: <1437751409-28837-1-git-send-email-jasaw@dius.com.au> Sender: linux-iio-owner@vger.kernel.org List-Id: linux-iio@vger.kernel.org From: Joo Aun Saw On error, caller's ci_array is freed and set to NULL to avoid potential double free. Counter is reset to zero for consistency. Signed-off-by: Joo Aun Saw --- tools/iio/iio_utils.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tools/iio/iio_utils.c b/tools/iio/iio_utils.c index 1dcdf03..8731905 100644 --- a/tools/iio/iio_utils.c +++ b/tools/iio/iio_utils.c @@ -529,6 +529,8 @@ error_cleanup_array: free((*ci_array)[i].generic_name); } free(*ci_array); + *ci_array = NULL; + *counter = 0; error_close_dir: if (dp) if (closedir(dp) == -1) -- 1.9.1