Patch "iio: core: Use min() instead of min_t() to make code more robust" has been added to the 4.19-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    iio: core: Use min() instead of min_t() to make code more robust

to the 4.19-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     iio-core-use-min-instead-of-min_t-to-make-code-more-.patch
and it can be found in the queue-4.19 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 0388b1b21167edaaff53e7415884c328e3b72136
Author: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Date:   Fri Jul 21 20:00:18 2023 +0300

    iio: core: Use min() instead of min_t() to make code more robust
    
    [ Upstream commit cb1d17535061ca295903f97f5cb0af9db719c02c ]
    
    min() has strict type checking and preferred over min_t() for
    unsigned types to avoid overflow. Here it's unclear why min_t()
    was chosen since both variables are of the same type. In any
    case update to use min().
    
    Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
    Reviewed-by: Nuno Sa <nuno.sa@xxxxxxxxxx>
    Link: https://lore.kernel.org/r/20230721170022.3461-5-andriy.shevchenko@xxxxxxxxxxxxxxx
    Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 49d4b4f1a4574..ad9bd2001fbd2 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -323,7 +323,7 @@ static ssize_t iio_debugfs_write_reg(struct file *file,
 	char buf[80];
 	int ret;
 
-	count = min_t(size_t, count, (sizeof(buf)-1));
+	count = min(count, sizeof(buf) - 1);
 	if (copy_from_user(buf, userbuf, count))
 		return -EFAULT;