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[PATCH 01/12] macfb: handle errors that occur during realize
From: |
Mark Cave-Ayland |
Subject: |
[PATCH 01/12] macfb: handle errors that occur during realize |
Date: |
Sat, 2 Oct 2021 11:59:56 +0100 |
Make sure any errors that occur within the macfb realize chain are detected
and handled correctly to prevent crashes and to ensure that error messages are
reported back to the user.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
---
hw/display/macfb.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/hw/display/macfb.c b/hw/display/macfb.c
index 76808b69cc..2b747a8de8 100644
--- a/hw/display/macfb.c
+++ b/hw/display/macfb.c
@@ -379,6 +379,10 @@ static void macfb_sysbus_realize(DeviceState *dev, Error
**errp)
MacfbState *ms = &s->macfb;
macfb_common_realize(dev, ms, errp);
+ if (*errp) {
+ return;
+ }
+
sysbus_init_mmio(SYS_BUS_DEVICE(s), &ms->mem_ctrl);
sysbus_init_mmio(SYS_BUS_DEVICE(s), &ms->mem_vram);
}
@@ -391,8 +395,15 @@ static void macfb_nubus_realize(DeviceState *dev, Error
**errp)
MacfbState *ms = &s->macfb;
ndc->parent_realize(dev, errp);
+ if (*errp) {
+ return;
+ }
macfb_common_realize(dev, ms, errp);
+ if (*errp) {
+ return;
+ }
+
memory_region_add_subregion(&nd->slot_mem, DAFB_BASE, &ms->mem_ctrl);
memory_region_add_subregion(&nd->slot_mem, VIDEO_BASE, &ms->mem_vram);
}
--
2.20.1