Thank you Sergei: for your time and review. I'll be careful to this.
Wish you best regards too - and good new year!

Enrico



On Mon, 29 Dec 2014, Sergei Shtylyov wrote:

Date: Mon, 29 Dec 2014 14:29:40
From: Sergei Shtylyov <redacted>
To: Enrico Mioso <redacted>, netdev@vger.kernel.org
Subject: Re: [RFC PATCH 2/6] cdc_ncm: be more precise in comments for
    cdc_ncm_prepare_skb_ncm16

Hello.

On 12/29/2014 1:09 PM, Enrico Mioso wrote:

quoted

The function might return NULL: callers must be prepared to this 
possibility.

quoted

Signed-Off-By: Enrico Mioso <redacted>
---
  drivers/net/usb/cdc_ncm.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

quoted

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index 48fee7a..bcd9437 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c

@@ -1015,7 +1015,7 @@ static struct usb_cdc_ncm_ndp16 *cdc_ncm_ndp16(struct 

cdc_ncm_ctx *ctx, struct s
  }

  /* Allocate new SKB for use with 16-bit NCM according to actual TX/RX
-	settings */
+	settings; returns NULL in case of errors */

  BTW, the preferred style for the multi-line comments in the networking 
code is:

/* bla
* bla
*/

WBR, Sergei