mirrors/libfprint
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/libfprint/libfprint.git synced 2025-11-15 07:38:12 +00:00
Code Issues Packages Projects Releases Wiki Activity

egismoc: Ensure that the command callback is after SSM is completed

Browse Source 
We need to make sure that we won't trigger a callback when a SSM is
already in progress or we may end up overwriting it
This commit is contained in:
Marco Trevisan (Treviño)
2024-02-19 15:41:15 +01:00
parent 226b6abfab
commit 6767cd1a4f
1 changed files with 13 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
libfprint/drivers/egismoc/egismoc.c
View File

@@ -181,7 +181,10 @@ egismoc_cmd_receive_cb (FpiUsbTransfer *transfer,
gpointer userdata,
GError *error)
{
g_autofree guchar *buffer = NULL;
CommandData *data = userdata;
SynCmdMsgCallback callback;
gssize actual_length;
fp_dbg ("Command receive callback");
@@ -197,10 +200,18 @@ egismoc_cmd_receive_cb (FpiUsbTransfer *transfer,
return;
}
if (data->callback)
data->callback (device, transfer->buffer, transfer->actual_length, NULL);
/* Let's complete the previous ssm and then handle the callback, so that
* we are sure that we won't start a transfer or a new command while there is
* another one still ongoing
*/
callback = data->callback;
buffer = g_steal_pointer (&transfer->buffer);
actual_length = transfer->actual_length;
fpi_ssm_mark_completed (transfer->ssm);
if (callback)
callback (device, buffer, actual_length, NULL);
}
static void