Messages in this thread Patch in this message | | | From | Jens Axboe <> | Subject | [PATCH 260/437] watchdog: w83977f_wdt: convert to read/write iterators | Date | Thu, 11 Apr 2024 09:16:40 -0600 |
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Signed-off-by: Jens Axboe <axboe@kernel.dk> --- drivers/watchdog/w83977f_wdt.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/watchdog/w83977f_wdt.c b/drivers/watchdog/w83977f_wdt.c index 31bf21ceaf48..2b9a8920ac2c 100644 --- a/drivers/watchdog/w83977f_wdt.c +++ b/drivers/watchdog/w83977f_wdt.c @@ -324,9 +324,9 @@ static int wdt_release(struct inode *inode, struct file *file) * write of data will do, as we don't define content meaning. */ -static ssize_t wdt_write(struct file *file, const char __user *buf, - size_t count, loff_t *ppos) +static ssize_t wdt_write(struct kiocb *iocb, struct iov_iter *from) { + size_t count = iov_iter_count(from); /* See if we got the magic character 'V' and reload the timer */ if (count) { if (!nowayout) { @@ -340,7 +340,7 @@ static ssize_t wdt_write(struct file *file, const char __user *buf, magic character */ for (ofs = 0; ofs != count; ofs++) { char c; - if (get_user(c, buf + ofs)) + if (get_iter(c, from)) return -EFAULT; if (c == 'V') expect_close = 42; @@ -444,7 +444,7 @@ static int wdt_notify_sys(struct notifier_block *this, unsigned long code, static const struct file_operations wdt_fops = { .owner = THIS_MODULE, .llseek = no_llseek, - .write = wdt_write, + .write_iter = wdt_write, .unlocked_ioctl = wdt_ioctl, .compat_ioctl = compat_ptr_ioctl, .open = wdt_open, -- 2.43.0
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