staging: fbtft: Fix to avoid precedence issues

Parentheses added to avoid operator precedence issues.

Signed-off-by: Rishiraj Manwatkar <manwatkar@outlook.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/fbtft/fb_hx8340bn.c b/drivers/staging/fbtft/fb_hx8340bn.c
index 1ca1fcd..fbd5ef5 100644 (file)
--- a/drivers/staging/fbtft/fb_hx8340bn.c
+++ b/drivers/staging/fbtft/fb_hx8340bn.c
@@ -157,7 +157,7 @@ static int set_var(struct fbtft_par *par)
  *   OP0 OP1 CP0 CP1 CP2 CP3 CP4 MP0 MP1 MP2 MP3 MP4 MP5 CGM0 CGM1
  *   ON0 ON1 CN0 CN1 CN2 CN3 CN4 MN0 MN1 MN2 MN3 MN4 MN5 XXXX  GC
  */
-#define CURVE(num, idx)  curves[num * par->gamma.num_values + idx]
+#define CURVE(num, idx)  curves[(num) * par->gamma.num_values + (idx)]
 static int set_gamma(struct fbtft_par *par, u32 *curves)
 {
        unsigned long mask[] = {