[01/23] exynos4210_fimd.c: fix display resize bug introduced after console revamp

Submitted by Gerd Hoffmann on March 20, 2013, 9:43 a.m.

Details

Message ID 1363772625-9182-2-git-send-email-kraxel@redhat.com
State New
Headers show

Commit Message

Gerd Hoffmann March 20, 2013, 9:43 a.m.
From: Igor Mitsyanko <i.mitsyanko@gmail.com>

In exynos4210 display update function, we were acquiring DisplaySurface
pointer before calling screen resize function, not paying attention that resize
procedure can replace current DisplaySurface with newly allocated one.
Right thing to do is to initialize DisplaySurface AFTER a call to resize function.

Signed-off-by: Igor Mitsyanko <i.mitsyanko@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 hw/exynos4210_fimd.c |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

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diff --git a/hw/exynos4210_fimd.c b/hw/exynos4210_fimd.c
index bf316c6..333456a 100644
--- a/hw/exynos4210_fimd.c
+++ b/hw/exynos4210_fimd.c
@@ -1243,7 +1243,7 @@  static void exynos4210_update_resolution(Exynos4210fimdState *s)
 static void exynos4210_fimd_update(void *opaque)
 {
     Exynos4210fimdState *s = (Exynos4210fimdState *)opaque;
-    DisplaySurface *surface = qemu_console_surface(s->console);
+    DisplaySurface *surface;
     Exynos4210fimdWindow *w;
     int i, line;
     hwaddr fb_line_addr, inc_size;
@@ -1256,11 +1256,12 @@  static void exynos4210_fimd_update(void *opaque)
     const int global_height = ((s->vidtcon[2] >> FIMD_VIDTCON2_VER_SHIFT) &
             FIMD_VIDTCON2_SIZE_MASK) + 1;
 
-    if (!s || !s->console || !surface_bits_per_pixel(surface) ||
-            !s->enabled) {
+    if (!s || !s->console || !s->enabled ||
+        surface_bits_per_pixel(qemu_console_surface(s->console)) == 0) {
         return;
     }
     exynos4210_update_resolution(s);
+    surface = qemu_console_surface(s->console);
 
     for (i = 0; i < NUM_OF_WINDOWS; i++) {
         w = &s->window[i];