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[PULL 6/8] ramfb: don't update RAMFBState on errors
From: |
Gerd Hoffmann |
Subject: |
[PULL 6/8] ramfb: don't update RAMFBState on errors |
Date: |
Mon, 18 May 2020 17:12:53 +0200 |
Store width & height & surface in local variables. Update RAMFBState
with the new values only in case the ramfb_create_display_surface() call
succeeds.
Signed-off-by: Gerd Hoffmann <address@hidden>
Reviewed-by: Philippe Mathieu-Daudé <address@hidden>
Reviewed-by: Laszlo Ersek <address@hidden>
Message-id: address@hidden
---
hw/display/ramfb.c | 26 +++++++++++++++++---------
1 file changed, 17 insertions(+), 9 deletions(-)
diff --git a/hw/display/ramfb.c b/hw/display/ramfb.c
index 228defee5683..1a20bdec416f 100644
--- a/hw/display/ramfb.c
+++ b/hw/display/ramfb.c
@@ -71,18 +71,26 @@ static DisplaySurface *ramfb_create_display_surface(int
width, int height,
static void ramfb_fw_cfg_write(void *dev, off_t offset, size_t len)
{
RAMFBState *s = dev;
- uint32_t fourcc, format;
+ DisplaySurface *surface;
+ uint32_t fourcc, format, width, height;
hwaddr stride, addr;
- s->width = be32_to_cpu(s->cfg.width);
- s->height = be32_to_cpu(s->cfg.height);
- stride = be32_to_cpu(s->cfg.stride);
- fourcc = be32_to_cpu(s->cfg.fourcc);
- addr = be64_to_cpu(s->cfg.addr);
- format = qemu_drm_format_to_pixman(fourcc);
+ width = be32_to_cpu(s->cfg.width);
+ height = be32_to_cpu(s->cfg.height);
+ stride = be32_to_cpu(s->cfg.stride);
+ fourcc = be32_to_cpu(s->cfg.fourcc);
+ addr = be64_to_cpu(s->cfg.addr);
+ format = qemu_drm_format_to_pixman(fourcc);
- s->ds = ramfb_create_display_surface(s->width, s->height,
- format, stride, addr);
+ surface = ramfb_create_display_surface(width, height,
+ format, stride, addr);
+ if (!surface) {
+ return;
+ }
+
+ s->width = width;
+ s->height = height;
+ s->ds = surface;
}
void ramfb_display_update(QemuConsole *con, RAMFBState *s)
--
2.18.4
- [PULL 0/8] Vga 20200518 patches, Gerd Hoffmann, 2020/05/18
- [PULL 3/8] Revert "hw/display/ramfb: initialize fw-config space with xres/ yres", Gerd Hoffmann, 2020/05/18
- [PULL 8/8] ramfb: fix size calculation, Gerd Hoffmann, 2020/05/18
- [PULL 5/8] ramfb: drop leftover debug message, Gerd Hoffmann, 2020/05/18
- [PULL 7/8] ramfb: add sanity checks to ramfb_create_display_surface, Gerd Hoffmann, 2020/05/18
- [PULL 2/8] hw/display: Include local 'framebuffer.h', Gerd Hoffmann, 2020/05/18
- [PULL 1/8] ati-vga: Do not allow unaligned access via index register, Gerd Hoffmann, 2020/05/18
- [PULL 4/8] Revert "hw/display/ramfb: lock guest resolution after it's set", Gerd Hoffmann, 2020/05/18
- [PULL 6/8] ramfb: don't update RAMFBState on errors,
Gerd Hoffmann <=
- Re: [PULL 0/8] Vga 20200518 patches, Peter Maydell, 2020/05/18