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-rw-r--r--src/common/linux/file_id.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/common/linux/file_id.cc b/src/common/linux/file_id.cc
index d69d45a9..1adf2a13 100644
--- a/src/common/linux/file_id.cc
+++ b/src/common/linux/file_id.cc
@@ -101,7 +101,7 @@ bool FileID::ElfFileIdentifier(unsigned char identifier[16]) {
}
void *base = mmap(NULL, st.st_size,
PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
- if (!base) {
+ if (base == MAP_FAILED) {
close(fd);
return false;
}