| From | Jens Axboe <> | Subject | [PATCH 242/437] watchdog: ibmasr: convert to read/write iterators | Date | Thu, 11 Apr 2024 09:16:22 -0600 |
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Signed-off-by: Jens Axboe <axboe@kernel.dk> --- drivers/watchdog/ibmasr.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/watchdog/ibmasr.c b/drivers/watchdog/ibmasr.c index 6955c693b5fd..6f0931f33a6d 100644 --- a/drivers/watchdog/ibmasr.c +++ b/drivers/watchdog/ibmasr.c @@ -243,9 +243,9 @@ static int __init asr_get_base_address(void) } -static ssize_t asr_write(struct file *file, const char __user *buf, - size_t count, loff_t *ppos) +static ssize_t asr_write(struct kiocb *iocb, struct iov_iter *from) { + size_t count = iov_iter_count(from); if (count) { if (!nowayout) { size_t i; @@ -255,7 +255,7 @@ static ssize_t asr_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') asr_expect_close = 42; @@ -341,7 +341,7 @@ static int asr_release(struct inode *inode, struct file *file) static const struct file_operations asr_fops = { .owner = THIS_MODULE, .llseek = no_llseek, - .write = asr_write, + .write_iter = asr_write, .unlocked_ioctl = asr_ioctl, .compat_ioctl = compat_ptr_ioctl, .open = asr_open, -- 2.43.0
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