From a6625d38cce3901a7c1cba069f0abcf743a293f1 Mon Sep 17 00:00:00 2001 From: Marc Hartmayer Date: Fri, 16 Apr 2021 09:47:36 +0200 Subject: [PATCH] pc-bios/s390-ccw: don't try to read the next block if end of chunk is reached Don't read the block if a null block number is reached, because this means that the end of chunk is reached. Reviewed-by: Collin Walling Signed-off-by: Marc Hartmayer Message-Id: <20210416074736.17409-1-mhartmay@linux.ibm.com> Signed-off-by: Thomas Huth --- pc-bios/s390-ccw/bootmap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/pc-bios/s390-ccw/bootmap.c b/pc-bios/s390-ccw/bootmap.c index 44df7d16af..b46997c0b7 100644 --- a/pc-bios/s390-ccw/bootmap.c +++ b/pc-bios/s390-ccw/bootmap.c @@ -213,7 +213,7 @@ static int eckd_get_boot_menu_index(block_number_t s1b_block_nr) next_block_nr = eckd_block_num(&s1b->seek[i + 1].chs); } - if (next_block_nr) { + if (next_block_nr && !is_null_block_number(next_block_nr)) { read_block(next_block_nr, s2_next_blk, "Cannot read stage2 boot loader"); } -- 2.30.2