[PATCH v4 16/31] SCSI: Fix error_append_hint/error_prepend usage

[Vladimir Sementsov-Ogievskiy]

If we want to add some info to errp (by error_prepend() or
error_append_hint()), we must use the ERRP_AUTO_PROPAGATE macro.
Otherwise, this info will not be added when errp == &fatal_err
(the program will exit prior to the error_append_hint() or
error_prepend() call).  Fix such cases.

This commit (together with its neighbors) was generated by

git grep -l 'error_\(append_hint\|prepend\)(errp' | while read f; do \
spatch --sp-file scripts/coccinelle/fix-error-add-info.cocci \
--in-place $f; done

and then

./python/commit-per-subsystem.py MAINTAINERS "$(< auto-msg)"

(auto-msg was a file with this commit message)

and then by hand, for not maintained changed files:

git commit -m "<SUB-SYSTEM>: $(< auto-msg)" <FILES>

Still, for backporting it may be more comfortable to use only the first
command and then do one huge commit.

Reported-by: Greg Kurz <address@hidden>
Signed-off-by: Vladimir Sementsov-Ogievskiy <address@hidden>
---
 hw/scsi/scsi-disk.c    | 1 +
 hw/scsi/scsi-generic.c | 1 +
 hw/scsi/vhost-scsi.c   | 1 +
 3 files changed, 3 insertions(+)

diff --git a/hw/scsi/scsi-disk.c b/hw/scsi/scsi-disk.c
index 915641a0f1..48165dc128 100644
--- a/hw/scsi/scsi-disk.c
+++ b/hw/scsi/scsi-disk.c
@@ -2597,6 +2597,7 @@ static int get_device_type(SCSIDiskState *s)
 
 static void scsi_block_realize(SCSIDevice *dev, Error **errp)
 {
+    ERRP_AUTO_PROPAGATE();
     SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev);
     AioContext *ctx;
     int sg_version;
diff --git a/hw/scsi/scsi-generic.c b/hw/scsi/scsi-generic.c
index e7798ebcd0..4c7543801f 100644
--- a/hw/scsi/scsi-generic.c
+++ b/hw/scsi/scsi-generic.c
@@ -653,6 +653,7 @@ static void scsi_generic_reset(DeviceState *dev)
 
 static void scsi_generic_realize(SCSIDevice *s, Error **errp)
 {
+    ERRP_AUTO_PROPAGATE();
     int rc;
     int sg_version;
     struct sg_scsi_id scsiid;
diff --git a/hw/scsi/vhost-scsi.c b/hw/scsi/vhost-scsi.c
index c693fc748a..c01c6dfbe2 100644
--- a/hw/scsi/vhost-scsi.c
+++ b/hw/scsi/vhost-scsi.c
@@ -165,6 +165,7 @@ static const VMStateDescription vmstate_virtio_vhost_scsi = 
{
 
 static void vhost_scsi_realize(DeviceState *dev, Error **errp)
 {
+    ERRP_AUTO_PROPAGATE();
     VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(dev);
     VHostSCSICommon *vsc = VHOST_SCSI_COMMON(dev);
     Error *err = NULL;
-- 
2.21.0