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Fixed potential issue found by PVS-Studio [#CLICKHOUSE-3]

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This commit is contained in:
Alexey Milovidov 2018-06-04 22:43:38 +03:00
parent f467fb38c7
commit a6caf556ef
1 changed files with 3 additions and 3 deletions
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6
dbms/src/Common/Allocator.cpp
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@ -123,11 +123,11 @@ void * Allocator<clear_memory_>::realloc(void * buf, size_t old_size, size_t new
{
CurrentMemoryTracker::realloc(old_size, new_size);
buf = ::realloc(buf, new_size);
if (nullptr == buf)
void * new_buf = ::realloc(buf, new_size);
if (nullptr == new_buf)
DB::throwFromErrno("Allocator: Cannot realloc from " + formatReadableSizeWithBinarySuffix(old_size) + " to " + formatReadableSizeWithBinarySuffix(new_size) + ".", DB::ErrorCodes::CANNOT_ALLOCATE_MEMORY);
buf = new_buf;
if (clear_memory && new_size > old_size)
memset(reinterpret_cast<char *>(buf) + old_size, 0, new_size - old_size);
}