[kdave-btrfs-devel:ext/dv/fscrypt 32/43] fs/btrfs/fscrypt.c:240:34: sparse: sparse: incorrect type in return expression (different base types)

[kernel test robot <lkp@intel.com>]

tree:   https://github.com/kdave/btrfs-devel.git ext/dv/fscrypt
head:   4c05f02641d57f578a685f7e8d27b9cb18d17cc7
commit: fda37caa264ff597b0fc03039dc95e392432bbc5 [32/43] btrfs: implement process_bio cb for fscrypt
config: alpha-randconfig-r122-20260514 (https://download.01.org/0day-ci/archive/20260514/202605140957.DjseWRNF-lkp@intel.com/config)
compiler: alpha-linux-gcc (GCC) 8.5.0
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260514/202605140957.DjseWRNF-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202605140957.DjseWRNF-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> fs/btrfs/fscrypt.c:240:34: sparse: sparse: incorrect type in return expression (different base types) @@     expected restricted blk_status_t @@     got int @@
   fs/btrfs/fscrypt.c:240:34: sparse:     expected restricted blk_status_t
   fs/btrfs/fscrypt.c:240:34: sparse:     got int

vim +240 fs/btrfs/fscrypt.c

   215	
   216	static blk_status_t btrfs_process_encrypted_bio(struct bio *orig_bio,
   217							struct bio *enc_bio)
   218	{
   219		struct btrfs_bio *bbio;
   220	
   221		/*
   222		 * If our bio is from the normal fs_bio_set then we know this is a
   223		 * mirror split and we can skip it, we'll get the real bio on the last
   224		 * mirror and we can process that one.
   225		 */
   226		if (orig_bio->bi_pool == &fs_bio_set)
   227			return BLK_STS_OK;
   228	
   229		bbio = btrfs_bio(orig_bio);
   230	
   231		if (bio_op(orig_bio) == REQ_OP_READ) {
   232			/*
   233			 * We have ->saved_iter based on the orig_bio, so if the block
   234			 * layer changes we need to notice this asap so we can update
   235			 * our code to handle the new world order.
   236			 */
   237			ASSERT(orig_bio == enc_bio);
   238			return btrfs_check_encrypted_read_bio(bbio, enc_bio);
   239		}
 > 240		return btrfs_csum_one_bio(bbio, enc_bio, false);
   241	}
   242	

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