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, 8 insertions, 4 deletions

diff --git a/hw/tcx.c b/hw/tcx.c
index ac7dcb428c..74a7085422 100644
--- a/hw/tcx.c
+++ b/hw/tcx.c
@@ -56,8 +56,10 @@ typedef struct TCXState {
     uint8_t dac_index, dac_state;
 } TCXState;
 
-static void tcx_screen_dump(void *opaque, const char *filename, bool cswitch);
-static void tcx24_screen_dump(void *opaque, const char *filename, bool cswitch);
+static void tcx_screen_dump(void *opaque, const char *filename, bool cswitch,
+                            Error **errp);
+static void tcx24_screen_dump(void *opaque, const char *filename, bool cswitch,
+                            Error **errp);
 
 static void tcx_set_dirty(TCXState *s)
 {
@@ -574,7 +576,8 @@ static int tcx_init1(SysBusDevice *dev)
     return 0;
 }
 
-static void tcx_screen_dump(void *opaque, const char *filename, bool cswitch)
+static void tcx_screen_dump(void *opaque, const char *filename, bool cswitch,
+                            Error **errp)
 {
     TCXState *s = opaque;
     FILE *f;
@@ -601,7 +604,8 @@ static void tcx_screen_dump(void *opaque, const char *filename, bool cswitch)
     return;
 }
 
-static void tcx24_screen_dump(void *opaque, const char *filename, bool cswitch)
+static void tcx24_screen_dump(void *opaque, const char *filename, bool cswitch,
+                              Error **errp)
 {
     TCXState *s = opaque;
     FILE *f;