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sdl: Move use of surface pointer below check for whether it is NULL 

In commit 2ab858c6c3 we added a use of the 'surf' variable
in sdl2_2d_update() that was unfortunately placed above the
early-exit-if-NULL check. Move it to where it ought to be.

Fixes: Coverity CID 1390598
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180515185814.1374-1-peter.maydell@linaro.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Peter Maydell 2018-05-15 19:58:14 +01:00 committed by Gerd Hoffmann
parent 68898bc82b
commit e8dcb8ae51
1 changed files with 3 additions and 3 deletions
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6
ui/sdl2-2d.c
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@ -36,9 +36,7 @@ void sdl2_2d_update(DisplayChangeListener *dcl,
struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl);
DisplaySurface *surf = qemu_console_surface(dcl->con);
SDL_Rect rect;
size_t surface_data_offset = surface_bytes_per_pixel(surf) * x +
surface_stride(surf) * y;
size_t surface_data_offset;
assert(!scon->opengl);
if (!surf) {
@ -48,6 +46,8 @@ void sdl2_2d_update(DisplayChangeListener *dcl,
return;
}
surface_data_offset = surface_bytes_per_pixel(surf) * x +
surface_stride(surf) * y;
rect.x = x;
rect.y = y;
rect.w = w;