diff --git a/libsparse/backed_block.c b/libsparse/backed_block.c
index dfb217b..3e72b57 100644
--- a/libsparse/backed_block.c
+++ b/libsparse/backed_block.c
@@ -370,7 +370,7 @@
 	}
 
 	new_bb = malloc(sizeof(struct backed_block));
-	if (bb == NULL) {
+	if (new_bb == NULL) {
 		return -ENOMEM;
 	}
 
diff --git a/libsparse/output_file.c b/libsparse/output_file.c
index 2428022..a28b0a5 100644
--- a/libsparse/output_file.c
+++ b/libsparse/output_file.c
@@ -722,10 +722,12 @@
 	}
 	pos = lseek64(fd, offset, SEEK_SET);
 	if (pos < 0) {
+                free(data);
 		return -errno;
 	}
 	ret = read_all(fd, data, len);
 	if (ret < 0) {
+                free(data);
 		return ret;
 	}
 	ptr = data;