On 29-05-18, 16:29, Greg Kroah-Hartman wrote:
> When calling debugfs functions, there is no need to ever check the
> return value. The function can work or not, but the code logic should
> never do something different based on this.
>
> Clean up the greybus camera driver by not caring about the value of
> debugfs calls. This ends up removing a number of lines of code that
> are not needed.
>
> Cc: Johan Hovold <johan@xxxxxxxxxx>
> Cc: Alex Elder <elder@xxxxxxxxxx>
> Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> Cc: greybus-dev@xxxxxxxxxxxxxxxx
> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> ---
> drivers/staging/greybus/camera.c | 17 +++--------------
> 1 file changed, 3 insertions(+), 14 deletions(-)
>
> diff --git a/drivers/staging/greybus/camera.c b/drivers/staging/greybus/camera.c
> index 07ebfb88db9b..341f729a9779 100644
> --- a/drivers/staging/greybus/camera.c
> +++ b/drivers/staging/greybus/camera.c
> @@ -1174,11 +1174,6 @@ static int gb_camera_debugfs_init(struct gb_camera *gcam)
> gcam->bundle->id);
>
> gcam->debugfs.root = debugfs_create_dir(dirname, gb_debugfs_get());
> - if (IS_ERR(gcam->debugfs.root)) {
> - gcam_err(gcam, "debugfs root create failed (%ld)\n",
> - PTR_ERR(gcam->debugfs.root));
> - return PTR_ERR(gcam->debugfs.root);
> - }
>
> gcam->debugfs.buffers = vmalloc(sizeof(*gcam->debugfs.buffers) *
> GB_CAMERA_DEBUGFS_BUFFER_MAX);
> @@ -1188,18 +1183,12 @@ static int gb_camera_debugfs_init(struct gb_camera *gcam)
> for (i = 0; i < ARRAY_SIZE(gb_camera_debugfs_entries); ++i) {
> const struct gb_camera_debugfs_entry *entry =
> &gb_camera_debugfs_entries[i];
> - struct dentry *dentry;
>
> gcam->debugfs.buffers[i].length = 0;
>
> - dentry = debugfs_create_file(entry->name, entry->mask,
> - gcam->debugfs.root, gcam,
> - &gb_camera_debugfs_ops);
> - if (IS_ERR(dentry)) {
> - gcam_err(gcam,
> - "debugfs operation %s create failed (%ld)\n",
> - entry->name, PTR_ERR(dentry));
> - return PTR_ERR(dentry);
> + debugfs_create_file(entry->name, entry->mask,
> + gcam->debugfs.root, gcam,
> + &gb_camera_debugfs_ops);
> }
> }
Reviewed-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
--
viresh
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