Variable ar assigned a value that is never used.
I have also removed all the code that thereby serves no purpose.

This was found using a static code analysis program called cppcheck

Signed-off-by: Rickard Strandqvist <redacted>
---
 drivers/video/fbdev/sis/init.c |   21 +++++----------------
 1 file changed, 5 insertions(+), 16 deletions(-)

diff --git a/drivers/video/fbdev/sis/init.c b/drivers/video/fbdev/sis/init.c
index bd40f5e..3ba446c 100644
--- a/drivers/video/fbdev/sis/init.c
+++ b/drivers/video/fbdev/sis/init.c

@@ -2649,7 +2649,7 @@ static void
 SiS_SetCRT1ModeRegs(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
 		unsigned short ModeIdIndex, unsigned short RRTI)
 {
-   unsigned short data, infoflag = 0, modeflag, resindex;
+   unsigned short data, infoflag = 0, modeflag;
 #ifdef CONFIG_FB_SIS_315
    unsigned char  *ROMAddr  = SiS_Pr->VirtualRomBase;
    unsigned short data2, data3;

@@ -2660,7 +2660,7 @@ SiS_SetCRT1ModeRegs(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
    if(SiS_Pr->UseCustomMode) {
       infoflag = SiS_Pr->CInfoFlag;
    } else {
-      resindex = SiS_GetResInfo(SiS_Pr, ModeNo, ModeIdIndex);
+      SiS_GetResInfo(SiS_Pr, ModeNo, ModeIdIndex);