Fix: race between lttng-ust getenv() and application setenv()

[lttng-ust.git] / snprintf / core.c

diff --git a/snprintf/core.c b/snprintf/core.c
index 966b588721aaf439bfd6ecfa1b4e74a617486a4f..c017b832220b0230ed2bb9cdeb8eed51fe451286 100644 (file)
--- a/snprintf/core.c
+++ b/snprintf/core.c
@@ -27,6 +27,11 @@ void init_usterr(void)
        char *ust_debug;
 
        if (ust_loglevel == UST_LOGLEVEL_UNKNOWN) {
+               /*
+                * This getenv is not part of lttng_getenv() because it
+                * is required to print ERR() performed during getenv
+                * initialization.
+                */
                ust_debug = getenv("LTTNG_UST_DEBUG");
                if (ust_debug)
                        ust_loglevel = UST_LOGLEVEL_DEBUG;