Re: [PATCH] autofs4 - panic after mount fail

From: Ian Kent
Date: Mon Nov 13 2006 - 11:01:06 EST


On Mon, 2006-11-13 at 11:07 +0000, David Howells wrote:
> Ian Kent <raven@xxxxxxxxxx> wrote:
>
> > - if (sbi->pipe) {
> > - fput(sbi->pipe); /* Close the pipe */
> > - sbi->pipe = NULL;
> > - }
> > + fput(sbi->pipe); /* Close the pipe */
> > + sbi->pipe = NULL;
>
> Ummm... Is that right? fput() doesn't check its argument for a NULL pointer,
> so the original code shouldn't hurt and should give you an extra bit of
> defense.

HaHa .. sometimes it's people saying "get id of that you don't need it"
and other times it's the opposite.

Setting sbi->catatonic = 1 upon entry to autofs[4]_fill_super ensures
that autofs[4]_catatonic_mode is not called until after sbi->pipe is non
NULL. So I decided, in this case, to remove the test.

Ian


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/