[Qemu-devel] [PULL 10/20] loader: document that errno is set

["Michael S. Tsirkin" <mst@redhat.com>]

Document that get_image_size sets errno
on failure.

Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 include/hw/loader.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/include/hw/loader.h b/include/hw/loader.h
index 7a23d6b..91b0122 100644
--- a/include/hw/loader.h
+++ b/include/hw/loader.h
@@ -4,6 +4,13 @@
 #include "hw/nvram/fw_cfg.h"
 
 /* loader.c */
+/**
+ * get_image_size: retrieve size of an image file
+ * @filename: Path to the image file
+ *
+ * Returns the size of the image file on success, -1 otherwise.
+ * On error, errno is also set as appropriate.
+ */
 int get_image_size(const char *filename);
 int load_image(const char *filename, uint8_t *addr); /* deprecated */
 int load_image_targphys(const char *filename, hwaddr,
-- 
MST