Re: [PATCH] staging: media: lirc: lirc_zilog.c: adjust debug messages

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On 11/01, Aya Mahfouz wrote:
> This patch removes one debug message and replaces a dev_err
> call by pr_err.

Usually you would like to send this as two separate patches because
replacing a debug message is way different than removing some code. It
should look like:

	PATCH 0/2 staging: media: adjust debug messages
		PATCH 1/2 staging: media: replace dev_err...
		PATCH 2/2 staging: media: remove debug message..

The lirc_zilog.c is not necessary in the topic line, as this can be seen
from the diff.
 
> Signed-off-by: Aya Mahfouz <mahfouz.saif.elyazal@xxxxxxxxx>
> ---
>  drivers/staging/media/lirc/lirc_zilog.c | 7 +------
>  1 file changed, 1 insertion(+), 6 deletions(-)
> 
> diff --git a/drivers/staging/media/lirc/lirc_zilog.c b/drivers/staging/media/lirc/lirc_zilog.c
> index 11a7cb1..ba538cd4 100644
> --- a/drivers/staging/media/lirc/lirc_zilog.c
> +++ b/drivers/staging/media/lirc/lirc_zilog.c
> @@ -1336,11 +1336,6 @@ static int close(struct inode *node, struct file *filep)
>  	/* find our IR struct */
>  	struct IR *ir = filep->private_data;
>  
> -	if (ir == NULL) {
> -		dev_err(ir->l.dev, "close: no private_data attached to the file!\n");
> -		return -ENODEV;
> -	}
> -

What is the reason behind this change? What would happen if the
filep->private_data is NULL? Are the callers of this function aware that
it will not return ENODEV anymore?

thanks,
konrad

>  	atomic_dec(&ir->open_count);
>  
>  	put_ir_device(ir, false);
> @@ -1633,7 +1628,7 @@ out_put_xx:
>  out_put_ir:
>  	put_ir_device(ir, true);
>  out_no_ir:
> -	dev_err(ir->l.dev, "%s: probing IR %s on %s (i2c-%d) failed with %d\n",
> +	pr_err("%s: probing IR %s on %s (i2c-%d) failed with %d\n",
>  		    __func__, tx_probe ? "Tx" : "Rx", adap->name, adap->nr,
>  		   ret);
>  	mutex_unlock(&ir_devices_lock);
> -- 
> 1.9.3
> 
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