Add a new error message in case the size of data written are shorter than the one expected.

Currently, it will lead to the following error message:

"mkimage: Write error on uImage: Success"

This is not explicit when the error is because the device doesn't have enough space. Let's use a more understandable message:

"mkimage: Write only 4202432/4682240 bytes, probably no space left on the device"

Signed-off-by: Mylène Josserand mylene.josserand@collabora.com Reviewed-by: Walter Lozano walter.lozano@collabora.com ---

Changes since v1: Set the message to be more explicit and saying that it is probably a "No space left on device"

tools/mkimage.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/tools/mkimage.c b/tools/mkimage.c index d2cd1917874..7cb666d4822 100644 --- a/tools/mkimage.c +++ b/tools/mkimage.c @@ -674,7 +674,7 @@ copy_file (int ifd, const char *datafile, int pad) int zero = 0; uint8_t zeros[4096]; int offset = 0; - int size; + int size, ret; struct image_type_params *tparams = imagetool_get_type(params.type);

memset(zeros, 0, sizeof(zeros)); @@ -730,9 +730,16 @@ copy_file (int ifd, const char *datafile, int pad) }

size = sbuf.st_size - offset; - if (write(ifd, ptr + offset, size) != size) { - fprintf (stderr, "%s: Write error on %s: %s\n", - params.cmdname, params.imagefile, strerror(errno)); + + ret = write(ifd, ptr + offset, size); + if (ret != size) { + if (ret < 0) + fprintf (stderr, "%s: Write error on %s: %s\n", + params.cmdname, params.imagefile, strerror(errno)); + else if (ret < size) + fprintf (stderr, "%s: Write only %d/%d bytes, "\ + "probably no space left on the device\n", + params.cmdname, ret, size); exit (EXIT_FAILURE); }