Re: [PATCH] udf: Use kvzalloc() in udf_sb_alloc_bitmap()

[Joe Perches]

On Thu, 2020-08-27 at 18:28 +0300, Denis Efremov wrote:
> > @@ -1013,10 +1013,7 @@ static struct udf_bitmap *udf_sb_alloc_bitmap(struct super_block *sb, u32 index)
> >  	size = sizeof(struct udf_bitmap) +
> >  		(sizeof(struct buffer_head *) * nr_groups);
> 
> I missed that this size is a good place to use struct_size for
> overflow checking. I will send v2 instead.

And you could cuddle the

	if (!bitmap)
		return NULL;

by removing the blank line between the alloc and test.