console: vga_hw_screen_dump_ptr: take Error argument

All devices that register a screen dump callback via
graphic_console_init() are updated.

The new argument is not used in this commit. Error handling will
be added to each device individually later.

This change is a preparation to convert the screendump command
to the QAPI.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/hw/vga.c b/hw/vga.c
index f82ced8e66..dd703cf41c 100644
--- a/hw/vga.c
+++ b/hw/vga.c
@@ -166,7 +166,8 @@ static uint32_t expand4[256];
 static uint16_t expand2[256];
 static uint8_t expand4to8[16];
 
-static void vga_screen_dump(void *opaque, const char *filename, bool cswitch);
+static void vga_screen_dump(void *opaque, const char *filename, bool cswitch,
+                            Error **errp);
 
 static void vga_update_memory_access(VGACommonState *s)
 {
@@ -2435,7 +2436,8 @@ int ppm_save(const char *filename, struct DisplaySurface *ds)
 
 /* save the vga display in a PPM image even if no display is
    available */
-static void vga_screen_dump(void *opaque, const char *filename, bool cswitch)
+static void vga_screen_dump(void *opaque, const char *filename, bool cswitch,
+                            Error **errp)
 {
     VGACommonState *s = opaque;