scsi: st: Fix array overflow in st_setup()

Change the array size to follow parms size instead of a fixed value.

Reported-by: Chenyuan Yang <[email protected]>
Closes: https://lore.kernel.org/linux-scsi/CALGdzuoubbra4xKOJcsyThdk5Y1BrAmZs==wbqjbkAgmKS39Aw@mail.gmail.com/
Signed-off-by: Kai Mäkisara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Martin K. Petersen <[email protected]>

Author: kmakisara

drivers/scsi/st.c

@@ -4157,7 +4157,7 @@ static void validate_options(void)
  */
 static int __init st_setup(char *str)
 {
-	int i, len, ints[5];
+	int i, len, ints[ARRAY_SIZE(parms) + 1];
 	char *stp;
 
 	stp = get_options(str, ARRAY_SIZE(ints), ints);