tests: drivers: disk: Replace the MAX function with if and else

As the parameter of "MAX" is uint32, the nagetive number will be
bigger than 0. The MAX function does not work as expected. So
change it to if/else form.

Fixes #51146

Signed-off-by: Hu Zhenyu <[email protected]>

Author: hunterhu3000

tests/drivers/disk/disk_access/src/main.c

@@ -94,7 +94,12 @@ static void test_sector_read(uint8_t *buf, uint32_t num_sectors)
 	rc = read_sector(buf, 0, num_sectors);
 	zassert_equal(rc, 0, "Failed to read from sector zero");
 	/* Read from a sector in the "middle" of the disk */
-	sector = MAX(((disk_sector_count / 2) - num_sectors), 0);
+	if (disk_sector_count / 2 > num_sectors) {
+		sector = disk_sector_count / 2 - num_sectors;
+	} else {
+		sector = 0;
+	}
+
 	rc = read_sector(buf, sector, num_sectors);
 	zassert_equal(rc, 0, "Failed to read from mid disk sector");
 	/* Read from the last sector */
@@ -147,7 +152,12 @@ static void test_sector_write(uint8_t *wbuf, uint8_t *rbuf, uint32_t num_sectors
 	rc = write_sector_checked(wbuf, rbuf, 0, num_sectors);
 	zassert_equal(rc, 0, "Failed to write to sector zero");
 	/* Write to a sector in the "middle" of the disk */
-	sector = MAX(((disk_sector_count / 2) - num_sectors), 0);
+	if (disk_sector_count / 2 > num_sectors) {
+		sector = disk_sector_count / 2 - num_sectors;
+	} else {
+		sector = 0;
+	}
+
 	rc = write_sector_checked(wbuf, rbuf, sector, num_sectors);
 	zassert_equal(rc, 0, "Failed to write to mid disk sector");
 	/* Write to the last sector */