diff --git a/memalloc.c b/memalloc.c
index 85c8d34..c02da5b 100644
--- a/memalloc.c
+++ b/memalloc.c
@@ -68,7 +68,7 @@ int init_memalloc(size_t aux, size_t pool)
 {
 	void *mem;
 	unsigned long addr;
-	size_t size, slots_size;
+	size_t slots_size;
 
 	slots_size = round_up_page_size(aux);
 	pool_size = round_up_page_size(pool);
diff --git a/resume.c b/resume.c
index bdb9e3a..5fedb15 100644
--- a/resume.c
+++ b/resume.c
@@ -258,8 +258,7 @@ static void reboot_question(char *message)
 static int read_image(int dev, int fd, loff_t start)
 {
 	struct image_header_info *header;
-	int ret, error;
-	char c;
+	int error;
 
 	header = getmem(page_size);
 
diff --git a/suspend.c b/suspend.c
index bca96eb..166a62f 100644
--- a/suspend.c
+++ b/suspend.c
@@ -1476,7 +1476,7 @@ static int write_image(int snapshot_fd, int resume_fd, int test_fd)
 		/* We have already read one page */
 		nr_pages--;
 	}
-	printf("%s: Image size: %lu kilobytes\n", my_name, image_size / 1024);
+	printf("%s: Image size: %lu kilobytes\n", my_name, (unsigned long) image_size / 1024);
 	real_size = image_size;
 
 	handle.swap_needed = image_size;