static int __init simdisk_init()

in platforms/iss/simdisk.c [292:330]

• 32 lines of code
• 12 McCabe index (conditional complexity)

static int __init simdisk_init(void)
{
	int i;

	if (register_blkdev(simdisk_major, "simdisk") < 0) {
		pr_err("SIMDISK: register_blkdev: %d\n", simdisk_major);
		return -EIO;
	}
	pr_info("SIMDISK: major: %d\n", simdisk_major);

	if (n_files > simdisk_count)
		simdisk_count = n_files;
	if (simdisk_count > MAX_SIMDISK_COUNT)
		simdisk_count = MAX_SIMDISK_COUNT;

	sddev = kmalloc_array(simdisk_count, sizeof(*sddev), GFP_KERNEL);
	if (sddev == NULL)
		goto out_unregister;

	simdisk_procdir = proc_mkdir("simdisk", 0);
	if (simdisk_procdir == NULL)
		goto out_free_unregister;

	for (i = 0; i < simdisk_count; ++i) {
		if (simdisk_setup(sddev + i, i, simdisk_procdir) == 0) {
			if (filename[i] != NULL && filename[i][0] != 0 &&
					(n_files == 0 || i < n_files))
				simdisk_attach(sddev + i, filename[i]);
		}
	}

	return 0;

out_free_unregister:
	kfree(sddev);
out_unregister:
	unregister_blkdev(simdisk_major, "simdisk");
	return -ENOMEM;
}