commit 19b5226ebd69dd3bbf3e9d6e3521295d427f1f47
author Linux Build Service Account <lnxbuild@localhost> Tue Nov 08 23:02:40 2022 -0800
committer Gerrit - the friendly Code Review server <code-review@localhost> Tue Nov 08 23:02:42 2022 -0800
tree 6963b67ad35fd1cfa1df4f146075b24a269ecac7
parent d6930b42cf77922c8de7c2481057481867685388
parent 06fe3c39c3fff5df48e7180286d9e43feb686bc4

Merge "agm: plugin: tinyalsa: Fix subtraction overflow error" into audio-platform-arintf.lnx.1.0.c10

plugins/tinyalsa/src/agm_pcm_plugin.c

diff --git a/plugins/tinyalsa/src/agm_pcm_plugin.c b/plugins/tinyalsa/src/agm_pcm_plugin.c
index 92c53ce..176a218 100644
--- a/plugins/tinyalsa/src/agm_pcm_plugin.c
+++ b/plugins/tinyalsa/src/agm_pcm_plugin.c
@@ -340,6 +340,7 @@
     uint32_t read_index, wall_clk_msw, wall_clk_lsw;
     int64_t delta_wall_clk_us = 0;
     uint32_t delta_wall_clk_frames = 0;
+    uint64_t sub_res = 0;
     int ret = 0;
     uint32_t period_size = priv->period_size; /** in frames */
     uint32_t crossed_boundary = 0;
@@ -371,7 +372,8 @@
                                          priv->pos_buf->wall_clk_lsw);
             // Compute delta only if diff is greater than zero
             if (dsp_wall_clk > cached_wall_clk) {
-                delta_wall_clk_us = (int64_t)(dsp_wall_clk - cached_wall_clk);
+                __builtin_usubl_overflow(dsp_wall_clk,cached_wall_clk,&sub_res);
+                delta_wall_clk_us = (int64_t)sub_res;
             }
         }
         // Identify the number of times of shared buffer length that the