Re: [PATCH 08/12] staging: dgap: tty.c: fixes ioctl param list

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On 08/27/2013 01:20 PM, Lidza Louina wrote:
On Fri, Aug 23, 2013 at 4:23 PM, Dan Carpenter <dan.carpenter@xxxxxxxxxx> wrote:
On Wed, Aug 21, 2013 at 09:48:38PM -0400, Lidza Louina wrote:
-static int dgap_tty_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd,
+static int dgap_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
               unsigned long arg)

Btw, now that this file compiles I see it in my static checker runs.

dgap_tty_ioctl() takes a lock but always returns before unlocking.

  {
       struct board_t *bd;
@@ -3423,41 +3423,6 @@ static int dgap_tty_ioctl(struct tty_struct *tty, struct file *file, unsigned in

               return(-ENOIOCTLCMD);

In other words, these return statements should be breaks so we hit
the call to:

         DGNC_UNLOCK(ch->ch_lock, lock_flags);

Hmm, I looked thru the code a few times, and it seems like
it unlocks before every return. Can you paste an example
where it does this?


FYI, there is no DGNC_UNLOCK in the dgap driver? Maybe he was looking at the dgnc while commenting on the dgap??? Just a guess.

Mark
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