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Thu, 11 Apr 2024 08:31:56 -0700 (PDT) Received: from localhost.localdomain ([96.43.243.2]) by smtp.gmail.com with ESMTPSA id jc25-20020a056638891900b0047f14b7f6c0sm457056jab.5.2024.04.11.08.31.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 11 Apr 2024 08:31:55 -0700 (PDT) From: Jens Axboe To: linux-kernel@vger.kernel.org Cc: Jens Axboe Subject: [PATCH 016/437] char/dsp1620: convert to read/write iterators Date: Thu, 11 Apr 2024 09:12:36 -0600 Message-ID: <20240411153126.16201-17-axboe@kernel.dk> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240411153126.16201-1-axboe@kernel.dk> References: <20240411153126.16201-1-axboe@kernel.dk> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Signed-off-by: Jens Axboe --- drivers/char/ds1620.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/char/ds1620.c b/drivers/char/ds1620.c index cf89a9631107..036f1db308d2 100644 --- a/drivers/char/ds1620.c +++ b/drivers/char/ds1620.c @@ -216,8 +216,7 @@ static int ds1620_open(struct inode *inode, struct file= *file) return stream_open(inode, file); } =20 -static ssize_t -ds1620_read(struct file *file, char __user *buf, size_t count, loff_t *ptr) +static ssize_t ds1620_read(struct kiocb *iocb, struct iov_iter *to) { signed int cur_temp; signed char cur_temp_degF; @@ -227,7 +226,7 @@ ds1620_read(struct file *file, char __user *buf, size_t= count, loff_t *ptr) /* convert to Fahrenheit, as per wdt.c */ cur_temp_degF =3D (cur_temp * 9) / 5 + 32; =20 - if (copy_to_user(buf, &cur_temp_degF, 1)) + if (!copy_to_iter_full(&cur_temp_degF, 1, to)) return -EFAULT; =20 return 1; @@ -351,7 +350,7 @@ static int ds1620_proc_therm_show(struct seq_file *m, v= oid *v) static const struct file_operations ds1620_fops =3D { .owner =3D THIS_MODULE, .open =3D ds1620_open, - .read =3D ds1620_read, + .read_iter =3D ds1620_read, .unlocked_ioctl =3D ds1620_unlocked_ioctl, .llseek =3D no_llseek, }; --=20 2.43.0