diff mbox series

[4.4,139/190] ALSA: hdspm: dont disable if not enabled

Message ID 20210520092106.790395683@linuxfoundation.org
State Superseded
Headers show
Series None | expand

Commit Message

Greg KH May 20, 2021, 9:23 a.m. UTC 
From: Tong Zhang <ztong0001@gmail.com>

[ Upstream commit 790f5719b85e12e10c41753b864e74249585ed08 ]

hdspm wants to disable a not enabled pci device, which makes kernel
throw a warning. Make sure the device is enabled before calling disable.

[    1.786391] snd_hdspm 0000:00:03.0: disabling already-disabled device
[    1.786400] WARNING: CPU: 0 PID: 182 at drivers/pci/pci.c:2146 pci_disable_device+0x91/0xb0
[    1.795181] Call Trace:
[    1.795320]  snd_hdspm_card_free+0x58/0xa0 [snd_hdspm]
[    1.795595]  release_card_device+0x4b/0x80 [snd]
[    1.795860]  device_release+0x3b/0xa0
[    1.796072]  kobject_put+0x94/0x1b0
[    1.796260]  put_device+0x13/0x20
[    1.796438]  snd_card_free+0x61/0x90 [snd]
[    1.796659]  snd_hdspm_probe+0x97b/0x1440 [snd_hdspm]

Suggested-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Tong Zhang <ztong0001@gmail.com>
Link: https://lore.kernel.org/r/20210321153840.378226-3-ztong0001@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/pci/rme9652/hdspm.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c
index 1a0c0d16a279..f4b164f19d30 100644
--- a/sound/pci/rme9652/hdspm.c
+++ b/sound/pci/rme9652/hdspm.c
@@ -6912,7 +6912,8 @@  static int snd_hdspm_free(struct hdspm * hdspm)
 	if (hdspm->port)
 		pci_release_regions(hdspm->pci);
 
-	pci_disable_device(hdspm->pci);
+	if (pci_is_enabled(hdspm->pci))
+		pci_disable_device(hdspm->pci);
 	return 0;
 }