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rptun: add ns_match callback to resolve rptun deadlock

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thread A: accept -> net_lock -> socket_rpmsg_accept
          -> rpmsg_register_callabck -> rptun_lock
thread B: ns_bind -> rpmsg_socket_ns_bind -> get_tx_payload_buffer
          -> rptun_wait_tx -> usrsock_rpmsg_ept_cb -> usrsockdev_write
          -> net_lock -> deadlock

fix:
add ns_match callback

Signed-off-by: ligd <liguiding1@xiaomi.com>
This commit is contained in:
ligd
2022-06-06 16:38:11 +08:00
committed by Xiang Xiao
parent 033cd4d7df
commit 8a3683fb9f
15 changed files with 213 additions and 112 deletions
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drivers/input/uinput.c
+1 -1
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@@ -258,7 +258,7 @@ static int uinput_rpmsg_initialize(FAR struct uinput_context_s *ctx,
list_initialize(&ctx->eptlist);
strlcpy(ctx->name, name, UINPUT_NAME_SIZE);
return rpmsg_register_callback(ctx, uinput_rpmsg_device_created,
uinput_rpmsg_device_destroy, NULL);
uinput_rpmsg_device_destroy, NULL, NULL);
}
/****************************************************************************