image-sparse: change retlen to size_t

retlen can potentially overflow. Also, write_full() in
fastboot_handle_sparse() expects size_t anyway.

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/include/image-sparse.h b/include/image-sparse.h
index 29242f4fd5..6bff844411 100644
--- a/include/image-sparse.h
+++ b/include/image-sparse.h
@@ -60,7 +60,7 @@ struct sparse_image_ctx;
 
 struct sparse_image_ctx *sparse_image_open(const char *path);
 int sparse_image_read(struct sparse_image_ctx *si, void *buf,
-		      loff_t *pos, size_t len, int *retlen);
+		      loff_t *pos, size_t len, size_t *retlen);
 void sparse_image_close(struct sparse_image_ctx *si);
 loff_t sparse_image_size(struct sparse_image_ctx *si);