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| author | Marc Hartmayer <mhartmay@linux.ibm.com> | 2020-09-24 10:59:25 +0200 |
|---|---|---|
| committer | Thomas Huth <thuth@redhat.com> | 2020-10-06 19:57:34 +0200 |
| commit | 468184ec9024f4f7b55247f70ec57554e8a500d7 (patch) | |
| tree | 990e7f615946c0df4c4676e1cca6691dfb250f3b /pc-bios | |
| parent | 5f97ba0c74ccace0a4014460de9751ff3c6f454a (diff) | |
| download | qemu-468184ec9024f4f7b55247f70ec57554e8a500d7.zip qemu-468184ec9024f4f7b55247f70ec57554e8a500d7.tar.gz qemu-468184ec9024f4f7b55247f70ec57554e8a500d7.tar.bz2 | |
pc-bios/s390-ccw: break loop if a null block number is reached
Break the loop if `cur_block_nr` is a null block number because this
means that the end of chunk is reached. In this case we will try to
boot the default entry.
Fixes: ba831b25262a ("s390-ccw: read stage2 boot loader data to find menu")
Reviewed-by: Collin Walling <walling@linux.ibm.com>
Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Message-Id: <20200924085926.21709-3-mhartmay@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Diffstat (limited to 'pc-bios')
| -rw-r--r-- | pc-bios/s390-ccw/bootmap.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/pc-bios/s390-ccw/bootmap.c b/pc-bios/s390-ccw/bootmap.c index 767bb61..942fba3 100644 --- a/pc-bios/s390-ccw/bootmap.c +++ b/pc-bios/s390-ccw/bootmap.c @@ -192,7 +192,7 @@ static int eckd_get_boot_menu_index(block_number_t s1b_block_nr) for (i = 0; i < STAGE2_BLK_CNT_MAX; i++) { cur_block_nr = eckd_block_num(&s1b->seek[i].chs); - if (!cur_block_nr) { + if (!cur_block_nr || is_null_block_number(cur_block_nr)) { break; } |