diff --git a/audio/aidl/default/alsa/ModuleAlsa.cpp b/audio/aidl/default/alsa/ModuleAlsa.cpp
index 8e75d56..8512631 100644
--- a/audio/aidl/default/alsa/ModuleAlsa.cpp
+++ b/audio/aidl/default/alsa/ModuleAlsa.cpp
@@ -39,13 +39,14 @@
     if (!deviceProfile.has_value()) {
         return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
     }
-    auto profile = alsa::readAlsaDeviceInfo(*deviceProfile);
-    if (!profile.has_value()) {
+    auto proxy = alsa::readAlsaDeviceInfo(*deviceProfile);
+    if (proxy.get() == nullptr) {
         return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_STATE);
     }
 
-    std::vector<AudioChannelLayout> channels = alsa::getChannelMasksFromProfile(&profile.value());
-    std::vector<int> sampleRates = alsa::getSampleRatesFromProfile(&profile.value());
+    alsa_device_profile* profile = proxy.getProfile();
+    std::vector<AudioChannelLayout> channels = alsa::getChannelMasksFromProfile(profile);
+    std::vector<int> sampleRates = alsa::getSampleRatesFromProfile(profile);
 
     for (size_t i = 0; i < std::min(MAX_PROFILE_FORMATS, AUDIO_PORT_MAX_AUDIO_PROFILES) &&
                        profile->formats[i] != PCM_FORMAT_INVALID;
diff --git a/audio/aidl/default/alsa/StreamAlsa.cpp b/audio/aidl/default/alsa/StreamAlsa.cpp
index 0605d6f..403b94b 100644
--- a/audio/aidl/default/alsa/StreamAlsa.cpp
+++ b/audio/aidl/default/alsa/StreamAlsa.cpp
@@ -83,7 +83,7 @@
             proxy = alsa::openProxyForAttachedDevice(
                     device, const_cast<struct pcm_config*>(&mConfig.value()), mBufferSizeFrames);
         }
-        if (!proxy) {
+        if (proxy.get() == nullptr) {
             return ::android::NO_INIT;
         }
         alsaDeviceProxies.push_back(std::move(proxy));
diff --git a/audio/aidl/default/alsa/Utils.cpp b/audio/aidl/default/alsa/Utils.cpp
index 9dcd024..c08836c 100644
--- a/audio/aidl/default/alsa/Utils.cpp
+++ b/audio/aidl/default/alsa/Utils.cpp
@@ -37,6 +37,23 @@
 
 namespace aidl::android::hardware::audio::core::alsa {
 
+DeviceProxy::DeviceProxy() : mProfile(nullptr), mProxy(nullptr, alsaProxyDeleter) {}
+
+DeviceProxy::DeviceProxy(const DeviceProfile& deviceProfile)
+    : mProfile(new alsa_device_profile), mProxy(new alsa_device_proxy, alsaProxyDeleter) {
+    profile_init(mProfile.get(), deviceProfile.direction);
+    mProfile->card = deviceProfile.card;
+    mProfile->device = deviceProfile.device;
+    memset(mProxy.get(), 0, sizeof(alsa_device_proxy));
+}
+
+void DeviceProxy::alsaProxyDeleter(alsa_device_proxy* proxy) {
+    if (proxy != nullptr) {
+        proxy_close(proxy);
+        delete proxy;
+    }
+}
+
 namespace {
 
 using AudioChannelCountToMaskMap = std::map<unsigned int, AudioChannelLayout>;
@@ -261,39 +278,24 @@
     return sampleRates;
 }
 
-DeviceProxy makeDeviceProxy() {
-    DeviceProxy proxy(new alsa_device_proxy, [](alsa_device_proxy* proxy) {
-        if (proxy != nullptr) {
-            proxy_close(proxy);
-            delete proxy;
-        }
-    });
-    memset(proxy.get(), 0, sizeof(alsa_device_proxy));
-    return proxy;
-}
-
 DeviceProxy openProxyForAttachedDevice(const DeviceProfile& deviceProfile,
                                        struct pcm_config* pcmConfig, size_t bufferFrameCount) {
     if (deviceProfile.isExternal) {
         LOG(FATAL) << __func__ << ": called for an external device, address=" << deviceProfile;
     }
-    alsa_device_profile profile;
-    profile_init(&profile, deviceProfile.direction);
-    profile.card = deviceProfile.card;
-    profile.device = deviceProfile.device;
-    if (!profile_fill_builtin_device_info(&profile, pcmConfig, bufferFrameCount)) {
+    DeviceProxy proxy(deviceProfile);
+    if (!profile_fill_builtin_device_info(proxy.getProfile(), pcmConfig, bufferFrameCount)) {
         LOG(FATAL) << __func__ << ": failed to init for built-in device, address=" << deviceProfile;
     }
-    auto proxy = makeDeviceProxy();
-    if (int err = proxy_prepare_from_default_config(proxy.get(), &profile); err != 0) {
+    if (int err = proxy_prepare_from_default_config(proxy.get(), proxy.getProfile()); err != 0) {
         LOG(FATAL) << __func__ << ": fail to prepare for device address=" << deviceProfile
                    << " error=" << err;
-        return nullptr;
+        return DeviceProxy();
     }
     if (int err = proxy_open(proxy.get()); err != 0) {
         LOG(ERROR) << __func__ << ": failed to open device, address=" << deviceProfile
                    << " error=" << err;
-        return nullptr;
+        return DeviceProxy();
     }
     return proxy;
 }
@@ -303,42 +305,36 @@
     if (!deviceProfile.isExternal) {
         LOG(FATAL) << __func__ << ": called for an attached device, address=" << deviceProfile;
     }
-    auto profile = readAlsaDeviceInfo(deviceProfile);
-    if (!profile.has_value()) {
-        LOG(ERROR) << __func__ << ": unable to read device info, device address=" << deviceProfile;
-        return nullptr;
+    auto proxy = readAlsaDeviceInfo(deviceProfile);
+    if (proxy.get() == nullptr) {
+        return proxy;
     }
-    auto proxy = makeDeviceProxy();
-    if (int err = proxy_prepare(proxy.get(), &profile.value(), pcmConfig, requireExactMatch);
+    if (int err = proxy_prepare(proxy.get(), proxy.getProfile(), pcmConfig, requireExactMatch);
         err != 0) {
         LOG(ERROR) << __func__ << ": fail to prepare for device address=" << deviceProfile
                    << " error=" << err;
-        return nullptr;
+        return DeviceProxy();
     }
     if (int err = proxy_open(proxy.get()); err != 0) {
         LOG(ERROR) << __func__ << ": failed to open device, address=" << deviceProfile
                    << " error=" << err;
-        return nullptr;
+        return DeviceProxy();
     }
     return proxy;
 }
 
-std::optional<alsa_device_profile> readAlsaDeviceInfo(const DeviceProfile& deviceProfile) {
-    alsa_device_profile profile;
-    profile_init(&profile, deviceProfile.direction);
-    profile.card = deviceProfile.card;
-    profile.device = deviceProfile.device;
-    if (!profile_read_device_info(&profile)) {
-        LOG(ERROR) << __func__ << ": failed to read device info, card=" << profile.card
-                   << ", device=" << profile.device;
-        return std::nullopt;
+DeviceProxy readAlsaDeviceInfo(const DeviceProfile& deviceProfile) {
+    DeviceProxy proxy(deviceProfile);
+    if (!profile_read_device_info(proxy.getProfile())) {
+        LOG(ERROR) << __func__ << ": unable to read device info, device address=" << deviceProfile;
+        return DeviceProxy();
     }
-    return profile;
+    return proxy;
 }
 
 void resetTransferredFrames(DeviceProxy& proxy, uint64_t frames) {
-    if (proxy != nullptr) {
-        proxy->transferred = frames;
+    if (proxy.get() != nullptr) {
+        proxy.get()->transferred = frames;
     }
 }
 
diff --git a/audio/aidl/default/alsa/Utils.h b/audio/aidl/default/alsa/Utils.h
index 37414b3..980f685 100644
--- a/audio/aidl/default/alsa/Utils.h
+++ b/audio/aidl/default/alsa/Utils.h
@@ -43,8 +43,21 @@
     bool isExternal;
 };
 std::ostream& operator<<(std::ostream& os, const DeviceProfile& device);
-using DeviceProxyDeleter = std::function<void(alsa_device_proxy*)>;
-using DeviceProxy = std::unique_ptr<alsa_device_proxy, DeviceProxyDeleter>;
+
+class DeviceProxy {
+  public:
+    DeviceProxy();  // Constructs a "null" proxy.
+    explicit DeviceProxy(const DeviceProfile& deviceProfile);
+    alsa_device_profile* getProfile() { return mProfile.get(); }
+    alsa_device_proxy* get() { return mProxy.get(); }
+
+  private:
+    static void alsaProxyDeleter(alsa_device_proxy* proxy);
+    using AlsaProxy = std::unique_ptr<alsa_device_proxy, decltype(alsaProxyDeleter)*>;
+
+    std::unique_ptr<alsa_device_profile> mProfile;
+    AlsaProxy mProxy;
+};
 
 ::aidl::android::media::audio::common::AudioChannelLayout getChannelLayoutMaskFromChannelCount(
         unsigned int channelCount, int isInput);
@@ -60,12 +73,11 @@
         const ::aidl::android::media::audio::common::AudioPort& audioPort);
 std::optional<struct pcm_config> getPcmConfig(const StreamContext& context, bool isInput);
 std::vector<int> getSampleRatesFromProfile(const alsa_device_profile* profile);
-DeviceProxy makeDeviceProxy();
 DeviceProxy openProxyForAttachedDevice(const DeviceProfile& deviceProfile,
                                        struct pcm_config* pcmConfig, size_t bufferFrameCount);
 DeviceProxy openProxyForExternalDevice(const DeviceProfile& deviceProfile,
                                        struct pcm_config* pcmConfig, bool requireExactMatch);
-std::optional<alsa_device_profile> readAlsaDeviceInfo(const DeviceProfile& deviceProfile);
+DeviceProxy readAlsaDeviceInfo(const DeviceProfile& deviceProfile);
 void resetTransferredFrames(DeviceProxy& proxy, uint64_t frames);
 
 ::aidl::android::media::audio::common::AudioFormatDescription