[PATCH AUTOSEL 5.11 019/104] ALSA: hdsp: don't disable if not enabled
From: Sasha Levin <sashal@kernel.org>
Date: 2021-05-05 16:46:43
Also in:
alsa-devel, lkml
Subsystem:
sound, the rest · Maintainers:
Jaroslav Kysela, Takashi Iwai, Linus Torvalds
From: Tong Zhang <redacted> [ Upstream commit 507cdb9adba006a7798c358456426e1aea3d9c4f ] hdsp wants to disable a not enabled pci device, which makes kernel throw a warning. Make sure the device is enabled before calling disable. [ 1.758292] snd_hdsp 0000:00:03.0: disabling already-disabled device [ 1.758327] WARNING: CPU: 0 PID: 180 at drivers/pci/pci.c:2146 pci_disable_device+0x91/0xb0 [ 1.766985] Call Trace: [ 1.767121] snd_hdsp_card_free+0x94/0xf0 [snd_hdsp] [ 1.767388] release_card_device+0x4b/0x80 [snd] [ 1.767639] device_release+0x3b/0xa0 [ 1.767838] kobject_put+0x94/0x1b0 [ 1.768027] put_device+0x13/0x20 [ 1.768207] snd_card_free+0x61/0x90 [snd] [ 1.768430] snd_hdsp_probe+0x524/0x5e0 [snd_hdsp] Suggested-by: Takashi Iwai <redacted> Signed-off-by: Tong Zhang <redacted> Link: https://lore.kernel.org/r/20210321153840.378226-2-ztong0001@gmail.com (local) Signed-off-by: Takashi Iwai <redacted> Signed-off-by: Sasha Levin <sashal@kernel.org> --- sound/pci/rme9652/hdsp.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/sound/pci/rme9652/hdsp.c b/sound/pci/rme9652/hdsp.c
index cea53a878c36..4aee30db034d 100644
--- a/sound/pci/rme9652/hdsp.c
+++ b/sound/pci/rme9652/hdsp.c@@ -5321,7 +5321,8 @@ static int snd_hdsp_free(struct hdsp *hdsp) if (hdsp->port) pci_release_regions(hdsp->pci); - pci_disable_device(hdsp->pci); + if (pci_is_enabled(hdsp->pci)) + pci_disable_device(hdsp->pci); return 0; }
--
2.30.2