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block: Error parameter for create functions

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Add an Error ** parameter to bdrv_create and its associated functions to
allow more specific error messages.

Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Max Reitz 2013-09-06 17:14:26 +02:00 • committed by Kevin Wolf
parent 34b5d2c68e
commit cc84d90ff5
9 changed files with 86 additions and 43 deletions
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16
qemu-img.c
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@ -1139,6 +1139,7 @@ static int img_convert(int argc, char **argv)
float local_progress = 0;
int min_sparse = 8; /* Need at least 4k of zeros for sparse detection */
bool quiet = false;
Error *local_err = NULL;
fmt = NULL;
out_fmt = "raw";
@ -1341,18 +1342,11 @@ static int img_convert(int argc, char **argv)
if (!skip_create) {
/* Create the new image */
ret = bdrv_create(drv, out_filename, param);
ret = bdrv_create(drv, out_filename, param, &local_err);
if (ret < 0) {
if (ret == -ENOTSUP) {
error_report("Formatting not supported for file format '%s'",
out_fmt);
} else if (ret == -EFBIG) {
error_report("The image size is too large for file format '%s'",
out_fmt);
} else {
error_report("%s: error while converting %s: %s",
out_filename, out_fmt, strerror(-ret));
}
error_report("%s: error while converting %s: %s",
out_filename, out_fmt, error_get_pretty(local_err));
error_free(local_err);
goto out;
}
}