mmc_test: fix memory allocation segment limits
Correctly allocate memory to meet the host controller
driver's maximum segment size and count limits.
Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
diff --git a/drivers/mmc/card/mmc_test.c b/drivers/mmc/card/mmc_test.c
index 6580af7..5874040 100644
--- a/drivers/mmc/card/mmc_test.c
+++ b/drivers/mmc/card/mmc_test.c
@@ -318,8 +318,8 @@
if (max_page_cnt > limit)
max_page_cnt = limit;
- if (max_page_cnt < min_page_cnt)
- max_page_cnt = min_page_cnt;
+ if (min_page_cnt > max_page_cnt)
+ min_page_cnt = max_page_cnt;
if (max_seg_page_cnt > max_page_cnt)
max_seg_page_cnt = max_page_cnt;
@@ -359,13 +359,13 @@
mem->cnt += 1;
if (max_page_cnt <= (1UL << order))
break;
+ max_page_cnt -= 1UL << order;
+ page_cnt += 1UL << order;
if (mem->cnt >= max_segs) {
if (page_cnt < min_page_cnt)
goto out_free;
break;
}
- max_page_cnt -= 1UL << order;
- page_cnt += 1UL << order;
}
return mem;
@@ -1470,12 +1470,12 @@
t->max_tfr = t->max_segs * t->max_seg_sz;
/*
- * Try to allocate enough memory for the whole area. Less is OK
+ * Try to allocate enough memory for a max. sized transfer. Less is OK
* because the same memory can be mapped into the scatterlist more than
* once. Also, take into account the limits imposed on scatterlist
* segments by the host driver.
*/
- t->mem = mmc_test_alloc_mem(min_sz, t->max_sz, t->max_segs,
+ t->mem = mmc_test_alloc_mem(min_sz, t->max_tfr, t->max_segs,
t->max_seg_sz);
if (!t->mem)
return -ENOMEM;