On Monday, September 17, 2012, Peter Senna Tschudin <peter.se...@gmail.com> 
wrote:
> From: Peter Senna Tschudin <peter.se...@gmail.com>
> 
> Convert a nonnegative error return code to a negative one, as returned
> elsewhere in the function.
> 
> A simplified version of the semantic match that finds this problem is as
> follows: (http://coccinelle.lip6.fr/)
> 
> // <smpl>
> (
> if@p1 (\(ret < 0\|ret != 0\))
>  { ... return ret; }
> |
> ret@p1 = 0
> )
> ... when != ret = e1
>     when != &ret
> *if(...)
> {
>   ... when != ret = e2
>       when forall
>  return ret;
> }
> // </smpl>
> 
> Signed-off-by: Peter Senna Tschudin <peter.se...@gmail.com>
> ---
>  drivers/mmc/host/dw_mmc.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
> index 36f98c0..7ad5176 100644
> --- a/drivers/mmc/host/dw_mmc.c
> +++ b/drivers/mmc/host/dw_mmc.c
> @@ -2039,8 +2039,10 @@ int dw_mci_probe(struct dw_mci *host)
>       tasklet_init(&host->tasklet, dw_mci_tasklet_func, (unsigned long)host);
>       host->card_workqueue = alloc_workqueue("dw-mci-card",
>                       WQ_MEM_RECLAIM | WQ_NON_REENTRANT, 1);
> -     if (!host->card_workqueue)
> +     if (!host->card_workqueue) {
> +             err = -ENOMEM;
ret is expected instead of err.
err isn't defined.

Thanks,
Seungwon Jeon

>               goto err_dmaunmap;
> +     }
>       INIT_WORK(&host->card_work, dw_mci_work_routine_card);
>       ret = request_irq(host->irq, dw_mci_interrupt, host->irq_flags, 
> "dw-mci", host);
>       if (ret)
> --
> 1.7.11.4

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