Fix: elf: NULL pointer dereference

Coverity reported:
CID 1321730 (#1 of 1): Dereference null return value (NULL_RETURNS)15.
dereference: Dereferencing a pointer that might be null _build_id when
calling lttng_ust_read.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

diff --git a/liblttng-ust/lttng-ust-elf.c b/liblttng-ust/lttng-ust-elf.c
index ee7eb7c4d2020b31adaeeb4c12dd460c16557a6a..dd50f2b674d689d2be9831536790e064765b8164 100644 (file)
--- a/liblttng-ust/lttng-ust-elf.c
+++ b/liblttng-ust/lttng-ust-elf.c
@@ -452,7 +452,7 @@ int lttng_ust_elf_get_build_id_from_segment(
 
                _length = nhdr.n_descsz;
                _build_id = zmalloc(sizeof(uint8_t) * _length);
-               if (!build_id) {
+               if (!_build_id) {
                        goto error;
                }