diff options
| -rw-r--r-- | firmware/target/hosted/lcd-linuxfb.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/firmware/target/hosted/lcd-linuxfb.c b/firmware/target/hosted/lcd-linuxfb.c index 3d7c9d99a9..6a57be9e40 100644 --- a/firmware/target/hosted/lcd-linuxfb.c +++ b/firmware/target/hosted/lcd-linuxfb.c @@ -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 |