Fix dangerous casts

On Windows 64-bit, the size of long is 32-bit, thus any pointer to long cast is
not valid. In any case, one should use intptr_t and ptrdiff_t when casting
to integers. This commit attempts to fix all instances reported by GCC.
When relevant, I replaced code by the macros PTR_ADD, ALIGN_UP from system.h

Change-Id: I2273b0e8465d3c4689824717ed5afa5ed238a2dc

1 files changed, 1 insertions, 1 deletions

diff --git a/firmware/drivers/lcd-16bit.c b/firmware/drivers/lcd-16bit.c
index 3c99560b6d..b792be4e02 100644
--- a/firmware/drivers/lcd-16bit.c
+++ b/firmware/drivers/lcd-16bit.c
@@ -139,7 +139,7 @@ void lcd_hline(int x1, int x2, int y)
         break;
 
       case OPT_COPY:
-        memcpy(dst, (void *)((long)dst + lcd_backdrop_offset),
+        memcpy(dst, PTR_ADD(dst, lcd_backdrop_offset),
                width * sizeof(fb_data));
         break;