erofs: modify the error message when prepare_ondemand_read failed

When prepare_ondemand_read failed, wrong error message is printed.
The prepare_read is also implemented in cachefiles, so we amend it.

Reviewed-by: Gao Xiang <[email protected]>
Signed-off-by: Hongbo Li <[email protected]>
Reviewed-by: Jingbo Xu <[email protected]>
Reviewed-by: Chao Yu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Gao Xiang <[email protected]>

Author: Hongbo Li

fs/erofs/fscache.c

@@ -151,7 +151,7 @@ static int erofs_fscache_read_io_async(struct fscache_cookie *cookie,
 		if (WARN_ON(len == 0))
 			source = NETFS_INVALID_READ;
 		if (source != NETFS_READ_FROM_CACHE) {
-			erofs_err(NULL, "prepare_read failed (source %d)", source);
+			erofs_err(NULL, "prepare_ondemand_read failed (source %d)", source);
 			return -EIO;
 		}