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hosted: fix shutdown crash in framebuffer code.

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Change-Id: I78315b81ab8df0408abc64d5edb6af37db568ad7
This commit is contained in:
Solomon Peachy 2020-10-01 09:57:51 -04:00
parent 0a7b23097a
commit 021b55735b
1 changed files with 9 additions and 1 deletions
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10
firmware/target/hosted/lcd-linuxfb.c
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@ -37,7 +37,7 @@
static int fd = -1;
static struct fb_var_screeninfo vinfo;
static struct fb_fix_screeninfo finfo;
fb_data *framebuffer = 0; /* global variable, see lcd-target.h */
fb_data *framebuffer = NULL; /* global variable, see lcd-target.h */
static void redraw(void)
{
@ -93,13 +93,17 @@ void lcd_init_device(void)
void lcd_shutdown(void)
{
munmap(framebuffer, FRAMEBUFFER_SIZE);
framebuffer = NULL;
close(fd);
fd = -1;
}
#endif
#ifdef HAVE_LCD_ENABLE
void lcd_enable(bool on)
{
if (fd < 0) return;
lcd_set_active(on);
if (on)
{
@ -120,6 +124,8 @@ extern void lcd_copy_buffer_rect(fb_data *dst, const fb_data *src,
void lcd_update(void)
{
if (fd < 0) return;
#ifdef HAVE_LCD_ENABLE
if (lcd_active())
#endif
@ -133,6 +139,8 @@ void lcd_update(void)
void lcd_update_rect(int x, int y, int width, int height)
{
if (fd < 0) return;
#ifdef HAVE_LCD_ENABLE
if (lcd_active())
#endif