Re: [PATCH] staging: android: ion: Fixing NULL comparison style

[Greg KH]

On Thu, Nov 19, 2015 at 10:29:53PM +0530, Anjali Menon wrote:
> Using checkpatch.pl fixed the check.
> 
> CHECK: Comparison to NULL could be written "!data"
> 
> Signed-off-by: Anjali Menon <cse.anjalimenon@xxxxxxxxx>
> ---
>  drivers/staging/android/ion/compat_ion.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/staging/android/ion/compat_ion.c b/drivers/staging/android/ion/compat_ion.c
> index a402fda..8a0df9c 100644
> --- a/drivers/staging/android/ion/compat_ion.c
> +++ b/drivers/staging/android/ion/compat_ion.c
> @@ -137,7 +137,7 @@ long compat_ion_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
>  
>  		data32 = compat_ptr(arg);
>  		data = compat_alloc_user_space(sizeof(*data));
> -		if (data == NULL)
> +		if ("!data" == NULL)

I don't think you compiled this code :(
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