commit 4f98785e4debdc8090fc0d5bfda2574b60f6ce46
author Stephen Hines <srhines@google.com> Tue Jul 14 12:21:26 2020 -0700
committer Stephen Hines <srhines@google.com> Tue Jul 14 12:21:26 2020 -0700
tree 90bb859d7c0376c96092ac5bed2e275ff9f931a4
parent fff944ed86fd8ab67cd3e961368522b1132d43a3

Switch to using 0 instead of NULL for a void* -> int cast

system/memory/libion/ion.c:51:32: error: cast to smaller integer type 'ion_user_handle_t' (aka 'int') from 'void *' [-Werror,-Wvoid-pointer-to-int-cast]
        int err = ion_free(fd, (ion_user_handle_t)NULL);
                               ^~~~~~~~~~~~~~~~~~~~~~~

Bug: http://b/155835175
Test: m with aosp_blueline
Change-Id: I0d663ddbc245764b469c4f589831586ea7e55148

ion.c

diff --git a/ion.c b/ion.c
index 07b4caf..8fdbb60 100644
--- a/ion.c
+++ b/ion.c
@@ -48,7 +48,7 @@
           * Check for FREE IOCTL here; it is available only in the old
           * kernels, not the new ones.
           */
-        int err = ion_free(fd, (ion_user_handle_t)NULL);
+        int err = ion_free(fd, (ion_user_handle_t)0);
         version = (err == -ENOTTY) ? ION_VERSION_MODERN : ION_VERSION_LEGACY;
         atomic_store_explicit(&g_ion_version, version, memory_order_release);
     }