staging: most: Switch from strlcpy to strscpy

strlcpy is marked as deprecated in Documentation/process/deprecated.rst,
and there is no functional difference when the caller expects truncation
(when not checking the return value). strscpy is relatively better as it
also avoids scanning the whole source string.

This silences the related checkpatch warnings from:
5dbdb2d87c29 ("checkpatch: prefer strscpy to strlcpy")

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20210131172838.146706-5-memxor@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/most/sound/sound.c b/drivers/staging/most/sound/sound.c
index 52f87a3..c87f6a0 100644 (file)
--- a/drivers/staging/most/sound/sound.c
+++ b/drivers/staging/most/sound/sound.c
@@ -527,7 +527,7 @@ static int audio_probe_channel(struct most_interface *iface, int channel_id,
                pr_err("Incompatible channel type\n");
                return -EINVAL;
        }
-       strlcpy(arg_list_cpy, arg_list, STRING_SIZE);
+       strscpy(arg_list_cpy, arg_list, STRING_SIZE);
        ret = split_arg_list(arg_list_cpy, &ch_num, &sample_res);
        if (ret < 0)
                return ret;

diff --git a/drivers/staging/most/video/video.c b/drivers/staging/most/video/video.c
index 829df89..90933d7 100644 (file)
--- a/drivers/staging/most/video/video.c
+++ b/drivers/staging/most/video/video.c
@@ -245,8 +245,8 @@ static int vidioc_querycap(struct file *file, void *priv,
        struct comp_fh *fh = priv;
        struct most_video_dev *mdev = fh->mdev;
 
-       strlcpy(cap->driver, "v4l2_component", sizeof(cap->driver));
-       strlcpy(cap->card, "MOST", sizeof(cap->card));
+       strscpy(cap->driver, "v4l2_component", sizeof(cap->driver));
+       strscpy(cap->card, "MOST", sizeof(cap->card));
        snprintf(cap->bus_info, sizeof(cap->bus_info),
                 "%s", mdev->iface->description);
        return 0;
@@ -483,7 +483,7 @@ static int comp_probe_channel(struct most_interface *iface, int channel_idx,
        mdev->v4l2_dev.release = comp_v4l2_dev_release;
 
        /* Create the v4l2_device */
-       strlcpy(mdev->v4l2_dev.name, name, sizeof(mdev->v4l2_dev.name));
+       strscpy(mdev->v4l2_dev.name, name, sizeof(mdev->v4l2_dev.name));
        ret = v4l2_device_register(NULL, &mdev->v4l2_dev);
        if (ret) {
                pr_err("v4l2_device_register() failed\n");