long get_ram_size(long *base, long maxsize)
{
volatile long *addr;
- long save[32];
+ long save[31];
+ long save_base;
long cnt;
long val;
long size;
addr = base;
sync();
- save[i] = *addr;
+ save_base = *addr;
sync();
*addr = 0;
if ((val = *addr) != 0) {
/* Restore the original data before leaving the function. */
sync();
- *addr = save[i];
+ *base = save_base;
for (cnt = 1; cnt < maxsize / sizeof(long); cnt <<= 1) {
addr = base + cnt;
sync();
addr = base + cnt;
*addr = save[--i];
}
+ /* warning: don't restore save_base in this case,
+ * it is already done in the loop because
+ * base and base+size share the same physical memory
+ * and *base is saved after *(base+size) modification
+ * in first loop
+ */
return (size);
}
}
+ *base = save_base;
return (maxsize);
}