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spapr/xive: Rework error handling of kvmppc_xive_[gs]et_queue_config()

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Since kvm_device_access() returns a negative errno on failure, convert
kvmppc_xive_get_queue_config() and kvmppc_xive_set_queue_config() to
use it for error checking. This allows to get rid of the local_err
boilerplate.

Propagate the return value so that callers may use it as well to check
failures.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <159707847357.1489912.2032291280645236480.stgit@bahia.lan>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Greg Kurz 2020-08-10 18:54:33 +02:00 • committed by David Gibson
parent 5fa36b7ffb
commit f9a548edf2
2 changed files with 18 additions and 21 deletions
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4
include/hw/ppc/spapr_xive.h
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@ -85,10 +85,10 @@ void kvmppc_xive_set_source_config(SpaprXive *xive, uint32_t lisn, XiveEAS *eas,
void kvmppc_xive_sync_source(SpaprXive *xive, uint32_t lisn, Error **errp);
uint64_t kvmppc_xive_esb_rw(XiveSource *xsrc, int srcno, uint32_t offset,
uint64_t data, bool write);
void kvmppc_xive_set_queue_config(SpaprXive *xive, uint8_t end_blk,
int kvmppc_xive_set_queue_config(SpaprXive *xive, uint8_t end_blk,
uint32_t end_idx, XiveEND *end,
Error **errp);
void kvmppc_xive_get_queue_config(SpaprXive *xive, uint8_t end_blk,
int kvmppc_xive_get_queue_config(SpaprXive *xive, uint8_t end_blk,
uint32_t end_idx, XiveEND *end,
Error **errp);
void kvmppc_xive_synchronize_state(SpaprXive *xive, Error **errp);