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-rw-r--r--erts/doc/src/erl_nif.xml7
1 files changed, 4 insertions, 3 deletions
diff --git a/erts/doc/src/erl_nif.xml b/erts/doc/src/erl_nif.xml
index ef3cdb89e9..b9c2e70b57 100644
--- a/erts/doc/src/erl_nif.xml
+++ b/erts/doc/src/erl_nif.xml
@@ -3044,9 +3044,10 @@ if (retval & ERL_NIF_SELECT_STOP_CALLED) {
</name>
<fsummary>Get the pid of the calling process.</fsummary>
<desc>
- <p>Initializes the pid variable <c>*pid</c> to represent the
- calling process.</p>
- <p>Returns <c>pid</c>.</p>
+ <p>Initializes the <seealso marker="#ErlNifPid"><c>ErlNifPid</c></seealso>
+ variable at <c>*pid</c> to represent the calling process.</p>
+ <p>Returns <c>pid</c> if successful, or NULL if <c>caller_env</c> is not
+ a <seealso marker="#ErlNifEnv">process-bound environment</seealso>.</p>
</desc>
</func>