On Mon, Dec 24, 2007 at 01:10:19AM +0100, marcin.slusarz@gmail.com wrote:
quoted text
> @@ -53,6 +53,7 @@
>  #include <linux/vfs.h>
>  #include <linux/vmalloc.h>
>  #include <asm/byteorder.h>
> +#include <linux/errno.h>

linux/*.h always before asm/*.h

quoted text
> +static int __must_check udf_sb_alloc_partition_maps(struct super_block *sb, __u32 count)

I think __must_check is primarily for public APIs.  But if it really
helps you here I won't complain.

Also please use u32 over __u32 (dito for the other similar types)

quoted text
> +{
> +	struct udf_sb_info *sbi = UDF_SB(sb);
> +	sbi->s_partmaps = kzalloc(sizeof(struct udf_part_map) * count, GFP_KERNEL);
> +	if (sbi->s_partmaps != NULL)
> +		sbi->s_partitions = count;
> +	else {
> +		sbi->s_partitions = 0;
> +		udf_error(sb, __FUNCTION__, "Unable to allocate space for %d partition maps", count);
> +	}
> +	return sbi->s_partmaps != NULL ? 0 : -ENOMEM;
> +}

But please don't introduce new overlong lines in entirely new functions.

Also the code look rather odd, I'd rather write it as:

static int udf_sb_alloc_partition_maps(struct super_block *sb, u32 count)
{
	struct udf_sb_info *sbi = UDF_SB(sb);

	sbi->s_partmaps = kcalloc(count, sizeof(struct udf_part_map),
				  GFP_KERNEL);
	if (!sbi->s_partmaps) {
		udf_error(sb, __FUNCTION__,
			  "Unable to allocate space for %d partition maps",
			  count);
		sbi->s_partitions = 0;
		return -ENOMEM;
	}

	sbi->s_partitions = count;
	return 0;
}
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