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cov: split check for type assignment

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Check that type is always defined, if not make it explicit internal
error (although logged as debug - so catched only with proper lvm.conf
setting).
This ensures later type being NULL can't be dereferenced with coredump.
This commit is contained in:
Zdenek Kabelac 2020-10-19 16:43:50 +02:00
parent a17ec7e0ba
commit 3e06061d82
1 changed files with 5 additions and 4 deletions
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9
device_mapper/libdm-report.c
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@ -749,10 +749,11 @@ static void _display_fields_more(struct dm_report *rh,
id_len = strlen(type->prefix) + 3;
for (f = 0; fields[f].report_fn; f++) {
if ((type = _find_type(rh, fields[f].type)) && type->desc)
desc = type->desc;
else
desc = " ";
if (!(type = _find_type(rh, fields[f].type))) {
log_debug(INTERNAL_ERROR "Field type undefined.");
continue;
}
desc = (type->desc) ? : " ";
if (desc != last_desc) {
if (*last_desc)
log_warn(" ");