qerror: Clean up QERR_ macros to expand into a single string

These macros expand into error class enumeration constant, comma,
string.  Unclean.  Has been that way since commit 13f59ae.

The error class is always ERROR_CLASS_GENERIC_ERROR since the previous
commit.

Clean up as follows:

* Prepend every use of a QERR_ macro by ERROR_CLASS_GENERIC_ERROR, and
  delete it from the QERR_ macro.  No change after preprocessing.

* Rewrite error_set(ERROR_CLASS_GENERIC_ERROR, ...) into
  error_setg(...).  Again, no change after preprocessing.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/backends/rng-random.c b/backends/rng-random.c
index 4f85a8ea49..4e51f4609b 100644
--- a/backends/rng-random.c
+++ b/backends/rng-random.c
@@ -74,8 +74,8 @@ static void rng_random_opened(RngBackend *b, Error **errp)
     RndRandom *s = RNG_RANDOM(b);
 
     if (s->filename == NULL) {
-        error_set(errp, QERR_INVALID_PARAMETER_VALUE,
-                  "filename", "a valid filename");
+        error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
+                   "filename", "a valid filename");
     } else {
         s->fd = qemu_open(s->filename, O_RDONLY | O_NONBLOCK);
         if (s->fd == -1) {
@@ -98,7 +98,7 @@ static void rng_random_set_filename(Object *obj, const char *filename,
     RndRandom *s = RNG_RANDOM(obj);
 
     if (b->opened) {
-        error_set(errp, QERR_PERMISSION_DENIED);
+        error_setg(errp, QERR_PERMISSION_DENIED);
         return;
     }