Re: [PATCH 5/12] drivers/parisc: Correct redundant test

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, Jul 27, 2009 at 06:13:48PM +0200, Julia Lawall wrote:
> From: Julia Lawall <julia@xxxxxxx>
> 
> pa_pdc_cell has already been tested.  It seems that this test should be on the
> recently returned value io_pdc_cell.
> 
> A simplified version of the semantic match that finds this problem is as
> follows: (http://www.emn.fr/x-info/coccinelle/)
> 
> // <smpl>
> @r exists@
> local idexpression x;
> expression E;
> @@
> 
> if (x == NULL || ...) { ... when forall
>    return ...; }
> ... when != \(x=E\|x--\|x++\|--x\|++x\|x-=E\|x+=E\|x|=E\|x&=E\|&x\)
> (
> *x == NULL
> |
> *x != NULL
> )
> // </smpl>
> 
> Signed-off-by: Julia Lawall <julia@xxxxxxx>

Good catch!

Reviewed-by: Grant Grundler <grundler@xxxxxxxxxxxxxxxx>

thanks,
grant

> ---
>  drivers/parisc/lba_pci.c            |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
> index ede6146..3aeb327 100644
> --- a/drivers/parisc/lba_pci.c
> +++ b/drivers/parisc/lba_pci.c
> @@ -992,7 +992,7 @@ lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
>  		return;
>  
>  	io_pdc_cell = kzalloc(sizeof(pdc_pat_cell_mod_maddr_block_t), GFP_KERNEL);
> -	if (!pa_pdc_cell) {
> +	if (!io_pdc_cell) {
>  		kfree(pa_pdc_cell);
>  		return;
>  	}
> --
> To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
> the body of a message to majordomo@xxxxxxxxxxxxxxx
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
--
To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [Kernel Development]     [Kernel Announce]     [Kernel Newbies]     [Linux Networking Development]     [Share Photos]     [IDE]     [Security]     [Git]     [Netfilter]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Device Mapper]

  Powered by Linux