Re: [patch] staging: bcm2835-camera: free first element in array

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Am 15.02.2017 13:25, schrieb Dan Carpenter:
> We should free gdev[0] so the > should be >=.
> 
> Fixes: 7b3ad5abf027 ("staging: Import the BCM2835 MMAL-based V4L2 camera driver.")
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
> 
> diff --git a/drivers/staging/media/platform/bcm2835/bcm2835-camera.c b/drivers/staging/media/platform/bcm2835/bcm2835-camera.c
> index ca15a698e018..9bcd8e546a14 100644
> --- a/drivers/staging/media/platform/bcm2835/bcm2835-camera.c
> +++ b/drivers/staging/media/platform/bcm2835/bcm2835-camera.c
> @@ -1998,7 +1998,7 @@ static int __init bm2835_mmal_init(void)
>  free_dev:
>  	kfree(dev);
>  
> -	for ( ; camera > 0; camera--) {
> +	for ( ; camera >= 0; camera--) {
>  		bcm2835_cleanup_instance(gdev[camera]);
>  		gdev[camera] = NULL;
>  	}

since we already know that programmers are bad in counting backwards ...

is is possible to change that into std. loop like:

 for(i=0, i< camera; i++ {
	bcm2835_cleanup_instance(gdev[i]);
	gdev[i] = NULL;
  	}

this is way a much more common pattern.


just my 2 cents,
re,
 wh

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