2023-03-11 01:12:25

by Marijn Suijten

[permalink] [raw]
Subject: [PATCH BlueZ] audio/transport: Propagate errors from avrcp_set_volume to DBus

Any error while setting absolute volume on the peer, or notifying the
peer of changes was previously going completely unnoticed. Propagate it
to the logs and back to the DBus "Volume" property setter so that they
aren't misled into thinking that the AVRCP command succeeded.

Note that an error is mostly harmless when the setter of the property is
an audio sink and the peer the audio source: in this case we're only
_notifying_ the peer of the change when it has already been applied on
the sink.

Also improve the other two error messages to more closely describe what
was "invalid" about the argument.
---
profiles/audio/transport.c | 34 +++++++++++++++++++++++-----------
1 file changed, 23 insertions(+), 11 deletions(-)

diff --git a/profiles/audio/transport.c b/profiles/audio/transport.c
index 457590746..2f5be8e32 100644
--- a/profiles/audio/transport.c
+++ b/profiles/audio/transport.c
@@ -734,15 +734,22 @@ static void set_volume(const GDBusPropertyTable *property,
uint16_t arg;
int8_t volume;
bool notify;
+ int err;

- if (dbus_message_iter_get_arg_type(iter) != DBUS_TYPE_UINT16)
- goto error;
+ if (dbus_message_iter_get_arg_type(iter) != DBUS_TYPE_UINT16) {
+ g_dbus_pending_property_error(id,
+ ERROR_INTERFACE ".InvalidArguments",
+ "Expected UINT16");
+ return;
+ }

dbus_message_iter_get_basic(iter, &arg);
- if (arg > INT8_MAX)
- goto error;
-
- g_dbus_pending_property_success(id);
+ if (arg > INT8_MAX) {
+ g_dbus_pending_property_error(id,
+ ERROR_INTERFACE ".InvalidArguments",
+ "Volume must not be larger than 127");
+ return;
+ }

volume = (int8_t)arg;
if (a2dp->volume == volume)
@@ -757,12 +764,17 @@ static void set_volume(const GDBusPropertyTable *property,
"Volume");
}

- avrcp_set_volume(transport->device, volume, notify);
- return;
+ err = avrcp_set_volume(transport->device, volume, notify);
+ if (err) {
+ error("avrcp_set_volume returned %s (%d)", strerror(-err), err);
+ g_dbus_pending_property_error(id,
+ ERROR_INTERFACE ".Failed",
+ "Internal error %s (%d)",
+ strerror(-err), err);
+ return;
+ }

-error:
- g_dbus_pending_property_error(id, ERROR_INTERFACE ".InvalidArguments",
- "Invalid arguments in method call");
+ g_dbus_pending_property_success(id);
}

static gboolean endpoint_exists(const GDBusPropertyTable *property, void *data)
--
2.39.2



2023-03-11 03:34:37

by bluez.test.bot

[permalink] [raw]
Subject: RE: [BlueZ] audio/transport: Propagate errors from avrcp_set_volume to DBus

This is automated email and please do not reply to this email!

Dear submitter,

Thank you for submitting the patches to the linux bluetooth mailing list.
This is a CI test results with your patch series:
PW Link:https://patchwork.kernel.org/project/bluetooth/list/?series=728988

---Test result---

Test Summary:
CheckPatch PASS 0.56 seconds
GitLint PASS 0.36 seconds
BuildEll PASS 32.31 seconds
BluezMake PASS 1004.82 seconds
MakeCheck PASS 12.92 seconds
MakeDistcheck PASS 179.77 seconds
CheckValgrind PASS 295.28 seconds
CheckSmatch PASS 395.81 seconds
bluezmakeextell PASS 120.26 seconds
IncrementalBuild PASS 824.62 seconds
ScanBuild PASS 1216.73 seconds



---
Regards,
Linux Bluetooth

2023-03-21 16:00:27

by patchwork-bot+bluetooth

[permalink] [raw]
Subject: Re: [PATCH BlueZ] audio/transport: Propagate errors from avrcp_set_volume to DBus

Hello:

This patch was applied to bluetooth/bluez.git (master)
by Luiz Augusto von Dentz <[email protected]>:

On Sat, 11 Mar 2023 02:12:02 +0100 you wrote:
> Any error while setting absolute volume on the peer, or notifying the
> peer of changes was previously going completely unnoticed. Propagate it
> to the logs and back to the DBus "Volume" property setter so that they
> aren't misled into thinking that the AVRCP command succeeded.
>
> Note that an error is mostly harmless when the setter of the property is
> an audio sink and the peer the audio source: in this case we're only
> _notifying_ the peer of the change when it has already been applied on
> the sink.
>
> [...]

Here is the summary with links:
- [BlueZ] audio/transport: Propagate errors from avrcp_set_volume to DBus
https://git.kernel.org/pub/scm/bluetooth/bluez.git/?id=1de41786c1a2

You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html