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macfb: fix a memory leak (CID 1465231)

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Rewrite the function using g_string_append_printf() rather than
g_strdup_printf()/g_strconcat().

Fixes: df8abbbadf ("macfb: add common monitor modes supported by the MacOS toolbox ROM")
Cc: mark.cave-ayland@ilande.co.uk
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20211105165254.3544369-1-laurent@vivier.eu>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This commit is contained in:
Laurent Vivier 2021-11-05 17:52:54 +01:00
parent 2b22e7540d
commit 5db83c7e90
1 changed files with 4 additions and 7 deletions
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11
hw/display/macfb.c
View File

@ -440,21 +440,18 @@ static MacFbMode *macfb_find_mode(MacfbDisplayType display_type,
static gchar *macfb_mode_list(void)
{
gchar *list = NULL;
gchar *mode;
GString *list = g_string_new("");
MacFbMode *macfb_mode;
int i;
for (i = 0; i < ARRAY_SIZE(macfb_mode_table); i++) {
macfb_mode = &macfb_mode_table[i];
mode = g_strdup_printf(" %dx%dx%d\n", macfb_mode->width,
g_string_append_printf(list, " %dx%dx%d\n", macfb_mode->width,
macfb_mode->height, macfb_mode->depth);
list = g_strconcat(mode, list, NULL);
g_free(mode);
}
return list;
return g_string_free(list, FALSE);
}
@ -643,7 +640,7 @@ static bool macfb_common_realize(DeviceState *dev, MacfbState *s, Error **errp)
gchar *list;
error_setg(errp, "unknown display mode: width %d, height %d, depth %d",
s->width, s->height, s->depth);
list = macfb_mode_list();
list = macfb_mode_list();
error_append_hint(errp, "Available modes:\n%s", list);
g_free(list);