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qom: Change object_get_canonical_path_component() not to malloc

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object_get_canonical_path_component() returns a malloced copy of a
property name on success, null on failure.

19 of its 25 callers immediately free the returned copy.

Change object_get_canonical_path_component() to return the property
name directly.  Since modifying the name would be wrong, adjust the
return type to const char *.

Drop the free from the 19 callers become simpler, add the g_strdup()
to the other six.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20200714160202.3121879-4-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
This commit is contained in:
Markus Armbruster 2020-07-14 18:02:00 +02:00
parent af3d69058e
commit 7a309cc95b
23 changed files with 41 additions and 61 deletions
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5
hw/block/nvme.c
View file

@ -1397,9 +1397,8 @@ static void nvme_check_constraints(NvmeCtrl *n, Error **errp)
if (!n->params.cmb_size_mb && n->pmrdev) {
if (host_memory_backend_is_mapped(n->pmrdev)) {
char *path = object_get_canonical_path_component(OBJECT(n->pmrdev));
error_setg(errp, "can't use already busy memdev: %s", path);
g_free(path);
error_setg(errp, "can't use already busy memdev: %s",
object_get_canonical_path_component(OBJECT(n->pmrdev)));
return;
}