Fixed Coverity issues

src/pow_hash.cpp

@@ -382,8 +382,8 @@ RandomX_Hasher_RPC::RandomX_Hasher_RPC(p2pool* pool)
 	// Init loop user data before running it
 	GetLoopUserData(&m_loop);
 
-	uv_async_init(&m_loop, &m_shutdownAsync, on_shutdown);
-	uv_async_init(&m_loop, &m_kickTheLoopAsync, nullptr);
+	uv_async_init_checked(&m_loop, &m_shutdownAsync, on_shutdown);
+	uv_async_init_checked(&m_loop, &m_kickTheLoopAsync, nullptr);
 	m_shutdownAsync.data = this;
 
 	uv_mutex_init_checked(&m_requestMutex);

src/side_chain.cpp

@@ -775,7 +775,9 @@ bool SideChain::get_outputs_blob(PoolBlock* block, uint64_t total_reward, std::v
 					int index;
 					while ((index = work->counter.fetch_sub(1)) >= 0) {
 						uint8_t view_tag;
-						work->tmpShares[index].m_wallet->get_eph_public_key(work->txkeySec, static_cast<size_t>(index), eph_public_key, view_tag);
+						if (!work->tmpShares[index].m_wallet->get_eph_public_key(work->txkeySec, static_cast<size_t>(index), eph_public_key, view_tag)) {
+							LOGWARN(6, "get_eph_public_key failed at index " << index);
+						}
 					}
 
 					++work->num_helper_jobs_finished;

src/util.cpp

@@ -232,6 +232,15 @@ void uv_rwlock_init_checked(uv_rwlock_t* lock)
 	}
 }
 
+void uv_async_init_checked(uv_loop_t* loop, uv_async_t* async, uv_async_cb async_cb)
+{
+	const int err = uv_async_init(loop, async, async_cb);
+	if (err) {
+		LOGERR(1, "uv_async_init failed, error " << uv_err_name(err));
+		panic();
+	}
+}
+
 uv_loop_t* uv_default_loop_checked()
 {
 	if (!is_main_thread()) {

src/uv_util.h

@@ -60,6 +60,7 @@ typedef RWLock<true> WriteLock;
 void uv_cond_init_checked(uv_cond_t* cond);
 void uv_mutex_init_checked(uv_mutex_t* mutex);
 void uv_rwlock_init_checked(uv_rwlock_t* lock);
+void uv_async_init_checked(uv_loop_t* loop, uv_async_t* async, uv_async_cb async_cb);
 uv_loop_t* uv_default_loop_checked();
 
 struct UV_LoopCallbackBase
@@ -96,7 +97,7 @@ struct UV_LoopUserData
 		, m_callbacks{}
 		, m_callbacksToRun{}
 	{
-		uv_async_init(m_loop, m_async, async_cb);
+		uv_async_init_checked(m_loop, m_async, async_cb);
 		m_async->data = this;
 
 		uv_mutex_init_checked(&m_callbacksLock);