[libvirt] [PATCH 06/26] storage: Resolve Coverity OVERFLOW_BEFORE_WIDEN
Coverity complains that when multiplying to 32 bit values that eventually
will be stored in a 64 bit value that it's possible the math could
overflow unless one of the values being multiplied is type cast to
the proper size.
Signed-off-by: John Ferlan <jferlan(a)redhat.com>
---
src/storage/storage_backend_disk.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/storage/storage_backend_disk.c b/src/storage/storage_backend_disk.c
index cb6a8d5..abab1e1 100644
--- a/src/storage/storage_backend_disk.c
+++ b/src/storage/storage_backend_disk.c
@@ -560,7 +560,7 @@ virStorageBackendDiskPartBoundaries(virStoragePoolObjPtr pool,
unsigned long long extraBytes = 0;
unsigned long long alignedAllocation = allocation;
virStoragePoolSourceDevicePtr dev = &pool->def->source.devices[0];
- unsigned long long cylinderSize = dev->geometry.heads *
+ unsigned long long cylinderSize = (unsigned long long)dev->geometry.heads *
dev->geometry.sectors * SECTOR_SIZE;
VIR_DEBUG("find free area: allocation %llu, cyl size %llu", allocation,
--
1.9.3