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loader: document that errno is set

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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>
This commit is contained in:
Michael S. Tsirkin 2014-02-05 21:57:55 +02:00
parent 7454e51d2b
commit a1483f88b6
1 changed files with 7 additions and 0 deletions
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7
include/hw/loader.h
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@ -4,6 +4,13 @@
#include "hw/nvram/fw_cfg.h" #include "hw/nvram/fw_cfg.h"
/* loader.c */ /* 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 get_image_size(const char *filename);
int load_image(const char *filename, uint8_t *addr); /* deprecated */ int load_image(const char *filename, uint8_t *addr); /* deprecated */
int load_image_targphys(const char *filename, hwaddr, int load_image_targphys(const char *filename, hwaddr,