linux-kernel - [PATCH 251/437] watchdog: sa1100_wdt: convert to read/write iterators

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Date: Thu, 11 Apr 2024 09:16:31 -0600
From: Jens Axboe <axboe@...nel.dk>
To: linux-kernel@...r.kernel.org
Cc: Jens Axboe <axboe@...nel.dk>
Subject: [PATCH 251/437] watchdog: sa1100_wdt: convert to read/write iterators

Signed-off-by: Jens Axboe <axboe@...nel.dk>
---
 drivers/watchdog/sa1100_wdt.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/watchdog/sa1100_wdt.c b/drivers/watchdog/sa1100_wdt.c
index 5d2df008b92a..f994b52565ec 100644
--- a/drivers/watchdog/sa1100_wdt.c
+++ b/drivers/watchdog/sa1100_wdt.c
@@ -98,9 +98,9 @@ static int sa1100dog_release(struct inode *inode, struct file *file)
 	return 0;
 }
 
-static ssize_t sa1100dog_write(struct file *file, const char __user *data,
-						size_t len, loff_t *ppos)
+static ssize_t sa1100dog_write(struct kiocb *iocb, struct iov_iter *from)
 {
+	size_t len = iov_iter_count(from);
 	if (len)
 		/* Refresh OSMR3 timer. */
 		sa1100_wr(sa1100_rd(REG_OSCR) + pre_margin, REG_OSMR3);
@@ -165,7 +165,7 @@ static long sa1100dog_ioctl(struct file *file, unsigned int cmd,
 static const struct file_operations sa1100dog_fops = {
 	.owner		= THIS_MODULE,
 	.llseek		= no_llseek,
-	.write		= sa1100dog_write,
+	.write_iter	= sa1100dog_write,
 	.unlocked_ioctl	= sa1100dog_ioctl,
 	.compat_ioctl	= compat_ptr_ioctl,
 	.open		= sa1100dog_open,
-- 
2.43.0