block: bdrv_img_create(): add Error ** argument
This commit adds an Error ** argument to bdrv_img_create() and set it
appropriately on error.
Callers of bdrv_img_create() pass NULL for the new argument and still
rely on bdrv_img_create()'s return value. Next commits will change
callers to use the Error object instead.
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
diff --git a/block.c b/block.c
index 2ec3afe..066bd66 100644
--- a/block.c
+++ b/block.c
@@ -4444,7 +4444,7 @@
int bdrv_img_create(const char *filename, const char *fmt,
const char *base_filename, const char *base_fmt,
- char *options, uint64_t img_size, int flags)
+ char *options, uint64_t img_size, int flags, Error **errp)
{
QEMUOptionParameter *param = NULL, *create_options = NULL;
QEMUOptionParameter *backing_fmt, *backing_file, *size;
@@ -4457,6 +4457,7 @@
drv = bdrv_find_format(fmt);
if (!drv) {
error_report("Unknown file format '%s'", fmt);
+ error_setg(errp, "Unknown file format '%s'", fmt);
ret = -EINVAL;
goto out;
}
@@ -4464,6 +4465,7 @@
proto_drv = bdrv_find_protocol(filename);
if (!proto_drv) {
error_report("Unknown protocol '%s'", filename);
+ error_setg(errp, "Unknown protocol '%s'", filename);
ret = -EINVAL;
goto out;
}
@@ -4483,6 +4485,7 @@
param = parse_option_parameters(options, create_options, param);
if (param == NULL) {
error_report("Invalid options for file format '%s'.", fmt);
+ error_setg(errp, "Invalid options for file format '%s'.", fmt);
ret = -EINVAL;
goto out;
}
@@ -4493,6 +4496,8 @@
base_filename)) {
error_report("Backing file not supported for file format '%s'",
fmt);
+ error_setg(errp, "Backing file not supported for file format '%s'",
+ fmt);
ret = -EINVAL;
goto out;
}
@@ -4502,6 +4507,8 @@
if (set_option_parameter(param, BLOCK_OPT_BACKING_FMT, base_fmt)) {
error_report("Backing file format not supported for file "
"format '%s'", fmt);
+ error_setg(errp, "Backing file format not supported for file "
+ "format '%s'", fmt);
ret = -EINVAL;
goto out;
}
@@ -4512,6 +4519,8 @@
if (!strcmp(filename, backing_file->value.s)) {
error_report("Error: Trying to create an image with the "
"same filename as the backing file");
+ error_setg(errp, "Error: Trying to create an image with the "
+ "same filename as the backing file");
ret = -EINVAL;
goto out;
}
@@ -4523,6 +4532,8 @@
if (!backing_drv) {
error_report("Unknown backing file format '%s'",
backing_fmt->value.s);
+ error_setg(errp, "Unknown backing file format '%s'",
+ backing_fmt->value.s);
ret = -EINVAL;
goto out;
}
@@ -4546,6 +4557,8 @@
ret = bdrv_open(bs, backing_file->value.s, back_flags, backing_drv);
if (ret < 0) {
error_report("Could not open '%s'", backing_file->value.s);
+ error_setg_errno(errp, -ret, "Could not open '%s'",
+ backing_file->value.s);
goto out;
}
bdrv_get_geometry(bs, &size);
@@ -4555,6 +4568,7 @@
set_option_parameter(param, BLOCK_OPT_SIZE, buf);
} else {
error_report("Image creation needs a size parameter");
+ error_setg(errp, "Image creation needs a size parameter");
ret = -EINVAL;
goto out;
}
@@ -4570,12 +4584,18 @@
if (ret == -ENOTSUP) {
error_report("Formatting or formatting option not supported for "
"file format '%s'", fmt);
+ error_setg(errp,"Formatting or formatting option not supported for "
+ "file format '%s'", fmt);
} else if (ret == -EFBIG) {
error_report("The image size is too large for file format '%s'",
fmt);
+ error_setg(errp, "The image size is too large for file format '%s'",
+ fmt);
} else {
error_report("%s: error while creating %s: %s", filename, fmt,
strerror(-ret));
+ error_setg(errp, "%s: error while creating %s: %s", filename, fmt,
+ strerror(-ret));
}
}
