From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-3301827-1517237385-2-16103598670138936122 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no ("Email failed DMARC policy for domain") X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, FREEMAIL_FORGED_FROMDOMAIN 0.195, FREEMAIL_FROM 0.001, HEADER_FROM_DIFFERENT_DOMAINS 0.001, RCVD_IN_DNSWL_MED -2.3, SPF_PASS -0.001, LANGUAGES unknown, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='140.211.166.133', Host='smtp2.osuosl.org', Country='US', FromHeader='com', MailFrom='org' X-Spam-charsets: plain='us-ascii' X-IgnoreVacation: yes ("Email failed DMARC policy for domain") X-Resolved-to: greg@kroah.com X-Delivered-to: greg@kroah.com X-Mail-from: driverdev-devel-bounces@linuxdriverproject.org ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=arctest; t=1517237384; b=FOWRQsmZ6xYGaaddj7Jda5QvlsjfeZXFqezi+ynRmUKyT08 3Le4huMn+JGDvLT6FRSnXkncOWVA26iGL+fBWvJcKIuPeN1FkDzQJKVHsK3ixu2t 4shp2BO7ROUyXuevfYBJXyupR2EqLfN8Jgf2K3YsWcW92seI+Gau+JTi591EJyvs v96DYs1TouMngG94C3ZLMlPlyLKNzjZ5slMWMdjy9N7qk2/lqs4W+fNkH5vuoFsd PvKpGVzcMqM49yrLNpUcJUEvTIi6DBXpHrGCHjF0Qy+iVVk51Y589YR222hjPcMJ Xk4NuKLdE5XbHgxmxGVHuIz5ZgYbrPE57pJINbw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=from:to:subject:date:message-id:list-id :list-unsubscribe:list-archive:list-post:list-help :list-subscribe:cc:mime-version:content-type :content-transfer-encoding:sender; s=arctest; t=1517237384; bh=s njeTSXEYfmvh0jgacClE9wO/bmA7UafDjwitGxm7Qg=; b=jjd10h3mp3h8cfAXc 0+EG4JQUXHN1a5LB8+9joYzb1btpGES9eD2DlGiNzUdXgDYVzj1zrA5HTMJZqLSA B9IDZcEi5pxDo4o/WvdQhdh3ysGX69oGGjkeKYROr817cASqbXy/VUZnDkVNvG8y srcInE4OH3xfRGEWIy6IpJUai8m3d5I7pO3Kbe0Vm6rWtHtSSljqzV6xESYvnaWX /aVd+drdSWp/QMsqI9yBhIwA74ZA5ZswlMobmFnnB37feEz4UfeYQh4ZKYepa2Ws iqFHrodOx2Ki+Afy0pQAGHDLpHvKCsST0lskBrNzhpKcEks07Csr2zKysp6NzbaW U0D9w== ARC-Authentication-Results: i=1; mx1.messagingengine.com; arc=none (no signatures found); dkim=fail (body has been altered; 2048-bit rsa key sha256) header.d=gmail.com header.i=@gmail.com header.b=MmTdohnl x-bits=2048 x-keytype=rsa x-algorithm=sha256 x-selector=20161025; dmarc=fail (p=none,has-list-id=yes,d=none) header.from=gmail.com; iprev=pass policy.iprev=140.211.166.133 (smtp2.osuosl.org); spf=pass smtp.mailfrom=driverdev-devel-bounces@linuxdriverproject.org smtp.helo=hemlock.osuosl.org; x-aligned-from=fail; x-google-dkim=fail (body has been altered; 2048-bit rsa key) header.d=1e100.net header.i=@1e100.net header.b=K1bt2ulz; x-ptr=fail x-ptr-helo=hemlock.osuosl.org x-ptr-lookup=smtp2.osuosl.org; x-return-mx=pass smtp.domain=linuxdriverproject.org smtp.result=pass smtp_is_org_domain=yes header.domain=gmail.com header.result=pass header_is_org_domain=yes; x-tls=pass version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128 Authentication-Results: mx1.messagingengine.com; arc=none (no signatures found); dkim=fail (body has been altered; 2048-bit rsa key sha256) header.d=gmail.com header.i=@gmail.com header.b=MmTdohnl x-bits=2048 x-keytype=rsa x-algorithm=sha256 x-selector=20161025; dmarc=fail (p=none,has-list-id=yes,d=none) header.from=gmail.com; iprev=pass policy.iprev=140.211.166.133 (smtp2.osuosl.org); spf=pass smtp.mailfrom=driverdev-devel-bounces@linuxdriverproject.org smtp.helo=hemlock.osuosl.org; x-aligned-from=fail; x-google-dkim=fail (body has been altered; 2048-bit rsa key) header.d=1e100.net header.i=@1e100.net header.b=K1bt2ulz; x-ptr=fail x-ptr-helo=hemlock.osuosl.org x-ptr-lookup=smtp2.osuosl.org; x-return-mx=pass smtp.domain=linuxdriverproject.org smtp.result=pass smtp_is_org_domain=yes header.domain=gmail.com header.result=pass header_is_org_domain=yes; x-tls=pass version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128 X-Remote-Delivered-To: driverdev-devel@osuosl.org X-Google-Smtp-Source: AH8x224HHreomOGYIz/g7Dmi3gV3FQyNNSTUt0mmlJ3U2OFOn0bQRhfUDgylhalQIKN2VDUWqX/rPA== From: Shreeya Patel To: lars@metafoo.de, Michael.Hennerich@analog.com, jic23@kernel.org, knaack.h@gmx.de, pmeerw@pmeerw.net, gregkh@linuxfoundation.org, linux-iio@vger.kernel.org, devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org Subject: [PATCH] Staging: iio: ade7758: Remove iio_dev mlock Date: Mon, 29 Jan 2018 20:19:26 +0530 Message-Id: <1517237366-4818-1-git-send-email-shreeya.patel23498@gmail.com> X-Mailer: git-send-email 2.7.4 X-BeenThere: driverdev-devel@linuxdriverproject.org X-Mailman-Version: 2.1.24 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Shreeya Patel MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: driverdev-devel-bounces@linuxdriverproject.org Sender: "devel" X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: In the ade7758 file, read raw does not require iio_dev->mlock for reads. It can run concurrently as resource protection is handled by buf_lock in ade7758_spi_read_reg_8() Signed-off-by: Shreeya Patel --- drivers/staging/iio/meter/ade7758_core.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/staging/iio/meter/ade7758_core.c b/drivers/staging/iio/meter/ade7758_core.c index 7b7ffe5..227dbfc 100644 --- a/drivers/staging/iio/meter/ade7758_core.c +++ b/drivers/staging/iio/meter/ade7758_core.c @@ -526,9 +526,7 @@ static int ade7758_read_raw(struct iio_dev *indio_dev, switch (mask) { case IIO_CHAN_INFO_SAMP_FREQ: - mutex_lock(&indio_dev->mlock); ret = ade7758_read_samp_freq(&indio_dev->dev, val); - mutex_unlock(&indio_dev->mlock); return ret; default: return -EINVAL; -- 2.7.4 _______________________________________________ devel mailing list devel@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel