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cov: add check for positive value

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As pgsize parameter for _init_free_list() can't be negative,
report problem in case for any reason we would get negative number.
This commit is contained in:
Zdenek Kabelac 2018-10-15 15:02:09 +02:00
parent 9b71212262
commit eb566e034f
1 changed files with 5 additions and 0 deletions
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5
lib/device/bcache.c
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@ -881,6 +881,11 @@ struct bcache *bcache_create(sector_t block_sectors, unsigned nr_cache_blocks,
unsigned max_io = engine->max_io(engine); unsigned max_io = engine->max_io(engine);
long pgsize = sysconf(_SC_PAGESIZE); long pgsize = sysconf(_SC_PAGESIZE);
if (pgsize < 0) {
log_warn("WARNING: _SC_PAGESIZE returns negative value.");
return NULL;
}
if (!nr_cache_blocks) { if (!nr_cache_blocks) {
log_warn("bcache must have at least one cache block"); log_warn("bcache must have at least one cache block");
return NULL; return NULL;