Gitweb:
https://sourceware.org/git/?p=lvm2.git;a=commitdiff;h=eb566e034fecd27ced0...
Commit: eb566e034fecd27ced0dc1133e19ced2636b3714
Parent: 9b7121226258f7dfe759cc1f8625cbfb80fec161
Author: Zdenek Kabelac <zkabelac(a)redhat.com>
AuthorDate: Mon Oct 15 15:02:09 2018 +0200
Committer: Zdenek Kabelac <zkabelac(a)redhat.com>
CommitterDate: Mon Oct 15 17:49:44 2018 +0200
cov: add check for positive value
As pgsize parameter for _init_free_list() can't be negative,
report problem in case for any reason we would get negative number.
---
lib/device/bcache.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/lib/device/bcache.c b/lib/device/bcache.c
index 43ca63e..8b2c7f8 100644
--- a/lib/device/bcache.c
+++ b/lib/device/bcache.c
@@ -881,6 +881,11 @@ struct bcache *bcache_create(sector_t block_sectors, unsigned
nr_cache_blocks,
unsigned max_io = engine->max_io(engine);
long pgsize = sysconf(_SC_PAGESIZE);
+ if (pgsize < 0) {
+ log_warn("WARNING: _SC_PAGESIZE returns negative value.");
+ return NULL;
+ }
+
if (!nr_cache_blocks) {
log_warn("bcache must have at least one cache block");
return NULL;