| From | Jens Axboe <> | Subject | [PATCH 277/437] watchdog: sbc8360: convert to read/write iterators | Date | Thu, 11 Apr 2024 09:16:57 -0600 |
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Signed-off-by: Jens Axboe <axboe@kernel.dk> --- drivers/watchdog/sbc8360.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/watchdog/sbc8360.c b/drivers/watchdog/sbc8360.c index 4f8b9912fc51..5d7042c85988 100644 --- a/drivers/watchdog/sbc8360.c +++ b/drivers/watchdog/sbc8360.c @@ -234,9 +234,10 @@ static void sbc8360_stop(void) } /* Userspace pings kernel driver, or requests clean close */ -static ssize_t sbc8360_write(struct file *file, const char __user *buf, - size_t count, loff_t *ppos) +static ssize_t sbc8360_write(struct kiocb *iocb, struct iov_iter *from) { + size_t count = iov_iter_count(from); + if (count) { if (!nowayout) { size_t i; @@ -246,7 +247,7 @@ static ssize_t sbc8360_write(struct file *file, const char __user *buf, for (i = 0; i != count; i++) { char c; - if (get_user(c, buf + i)) + if (get_iter(c, from)) return -EFAULT; if (c == 'V') expect_close = 42; @@ -302,7 +303,7 @@ static int sbc8360_notify_sys(struct notifier_block *this, unsigned long code, static const struct file_operations sbc8360_fops = { .owner = THIS_MODULE, .llseek = no_llseek, - .write = sbc8360_write, + .write_iter = sbc8360_write, .open = sbc8360_open, .release = sbc8360_close, }; -- 2.43.0
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