From b676da70c495acb2515de76300596e9147806ead Mon Sep 17 00:00:00 2001 From: Rakesh Ughreja Date: Tue, 24 Oct 2017 18:26:47 +0530 Subject: ALSA: hda: Abort capability probe on invalid capability On reading wrong capability pointer values driver may crash, so whenever driver discovers unknown HDA capability, log it as error and stop traversing the link list further. Signed-off-by: Rakesh Ughreja Acked-by: Vinod Koul Signed-off-by: Takashi Iwai --- sound/hda/hdac_controller.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'sound/hda/hdac_controller.c') diff --git a/sound/hda/hdac_controller.c b/sound/hda/hdac_controller.c index 978dc1801b3a..8f7d0d9ed762 100644 --- a/sound/hda/hdac_controller.c +++ b/sound/hda/hdac_controller.c @@ -314,7 +314,8 @@ int snd_hdac_bus_parse_capabilities(struct hdac_bus *bus) break; default: - dev_dbg(bus->dev, "Unknown capability %d\n", cur_cap); + dev_err(bus->dev, "Unknown capability %d\n", cur_cap); + cur_cap = 0; break; } -- cgit v1.2.3