pam: avoid compiler warning in copyIntoSecret()

gcc 11 enabled -Wmaybe-uninitialized by default.  It causes a
false-positive warning in copyIntoSecret() because gcc doesn't
understand that mlock() is special and doesn't read from the memory.

Just initialize the memory to avoid this warning.

1 files changed, 1 insertions, 1 deletions

diff --git a/pam/pam.c b/pam/pam.c
index 1859a2f..1479dfa 100644
--- a/pam/pam.c
+++ b/pam/pam.c
@@ -93,7 +93,7 @@ void freeArray(pam_handle_t* pamh, void** array, int error_status) {
 
 void* copyIntoSecret(void* data) {
   size_t size = strlen(data) + 1;  // include null terminator
-  void* copy = malloc(size);
+  void* copy = calloc(1, size);    // initialize to avoid a compiler warning
   mlock(copy, size);
   memcpy(copy, data, size);
   return copy;