From 705c0ee8d4a64b072e324f8daa8767e92560a892 Mon Sep 17 00:00:00 2001 From: John Garry Date: Thu, 3 Jan 2019 19:57:02 +0800 Subject: [PATCH] bus: hisi_lpc: Don't fail probe for unrecognised child devices Currently for ACPI-based FW we fail the probe for an unrecognised child HID. However, there is FW in the field with LPC child devices having fake HIDs, namely "IPI0002", which was an IPMI device invented to support the initial out-of-tree LPC host driver, different from the final mainline version. To provide compatibility support for these dodgy FWs, just discard the unrecognised HIDs instead of failing the probe altogether. Tested-by: Zengruan Ye Signed-off-by: John Garry Signed-off-by: Wei Xu --- drivers/bus/hisi_lpc.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/bus/hisi_lpc.c b/drivers/bus/hisi_lpc.c index d5f85455fa62..19d7b6ff2f17 100644 --- a/drivers/bus/hisi_lpc.c +++ b/drivers/bus/hisi_lpc.c @@ -522,10 +522,9 @@ static int hisi_lpc_acpi_probe(struct device *hostdev) if (!found) { dev_warn(hostdev, - "could not find cell for child device (%s)\n", + "could not find cell for child device (%s), discarding\n", hid); - ret = -ENODEV; - goto fail; + continue; } pdev = platform_device_alloc(cell->name, PLATFORM_DEVID_AUTO);