diff options
Diffstat (limited to 'nuttx/drivers')
| -rwxr-xr-x | nuttx/drivers/lcd/ug-9664hswag01.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/nuttx/drivers/lcd/ug-9664hswag01.c b/nuttx/drivers/lcd/ug-9664hswag01.c index b68aef3b8..bb49f20e6 100755 --- a/nuttx/drivers/lcd/ug-9664hswag01.c +++ b/nuttx/drivers/lcd/ug-9664hswag01.c @@ -296,7 +296,7 @@ static inline void up_clear(FAR struct ug_dev_s *priv); * if there are multiple LCD devices, they must each have unique run buffers. */ -static uint8_t g_runbuffer[UG_XSTRIDE]; +static uint8_t g_runbuffer[UG_XSTRIDE+1]; /* This structure describes the overall LCD video controller */ @@ -701,12 +701,16 @@ static int ug_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buffer, *buffer |= usrmask; } - /* Inc/Decrement to the next destination pixel */ + /* Inc/Decrement to the next destination pixel. Hmmmm. It looks like + * this logic could write past the end of the user buffer. Revisit + * this! + */ #ifdef CONFIG_NX_PACKEDMSFIRST if (usrmask == LS_BIT) { buffer++; + *buffer = 0; usrmask = MS_BIT; } else |