[PATCH 0/2] ALSA: hdsp and hdspm, don't disable device if not enabled

[PATCH 0/2] ALSA: hdsp and hdspm, don't disable device if not enabled

[Tong Zhang]

This series fixes issues in hdsp and hdspm. The drivers in question want
to disable a device that is not enabled on error path.

Tong Zhang (2):
  ALSA: hdsp: don't disable if not enabled
  ALSA: hdspm: don't disable if not enabled

 sound/pci/rme9652/hdsp.c  | 10 ++++++----
 sound/pci/rme9652/hdspm.c | 10 ++++++----
 2 files changed, 12 insertions(+), 8 deletions(-)

-- 
2.25.1

[PATCH 1/2] ALSA: hdsp: don't disable if not enabled

[Tong Zhang]

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]

Signed-off-by: Tong Zhang <ztong0001@gmail.com>
---
 sound/pci/rme9652/hdsp.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/sound/pci/rme9652/hdsp.c b/sound/pci/rme9652/hdsp.c
index 4cf879c42dc4..d9879a5bd60e 100644
--- a/sound/pci/rme9652/hdsp.c
+++ b/sound/pci/rme9652/hdsp.c
@@ -5285,8 +5285,10 @@ static int snd_hdsp_create(struct snd_card *card,
 
 	pci_set_master(hdsp->pci);
 
-	if ((err = pci_request_regions(pci, "hdsp")) < 0)
+	if ((err = pci_request_regions(pci, "hdsp")) < 0) {
+		pci_disable_device(pci);
 		return err;
+	}
 	hdsp->port = pci_resource_start(pci, 0);
 	if ((hdsp->iobase = ioremap(hdsp->port, HDSP_IO_EXTENT)) == NULL) {
 		dev_err(hdsp->card->dev, "unable to remap region 0x%lx-0x%lx\n",
@@ -5387,10 +5389,10 @@ static int snd_hdsp_free(struct hdsp *hdsp)
 	vfree(hdsp->fw_uploaded);
 	iounmap(hdsp->iobase);
 
-	if (hdsp->port)
+	if (hdsp->port) {
 		pci_release_regions(hdsp->pci);
-
-	pci_disable_device(hdsp->pci);
+		pci_disable_device(hdsp->pci);
+	}
 	return 0;
 }
 
-- 
2.25.1

[PATCH 2/2] ALSA: hdspm: don't disable if not enabled

[Tong Zhang]

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]

Signed-off-by: Tong Zhang <ztong0001@gmail.com>
---
 sound/pci/rme9652/hdspm.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c
index 8d900c132f0f..af3898c88bba 100644
--- a/sound/pci/rme9652/hdspm.c
+++ b/sound/pci/rme9652/hdspm.c
@@ -6582,8 +6582,10 @@ static int snd_hdspm_create(struct snd_card *card,
 	pci_set_master(hdspm->pci);
 
 	err = pci_request_regions(pci, "hdspm");
-	if (err < 0)
+	if (err < 0) {
+		pci_disable_device(pci);
 		return err;
+	}
 
 	hdspm->port = pci_resource_start(pci, 0);
 	io_extent = pci_resource_len(pci, 0);
@@ -6880,10 +6882,10 @@ static int snd_hdspm_free(struct hdspm * hdspm)
 	kfree(hdspm->mixer);
 	iounmap(hdspm->iobase);
 
-	if (hdspm->port)
+	if (hdspm->port) {
 		pci_release_regions(hdspm->pci);
-
-	pci_disable_device(hdspm->pci);
+		pci_disable_device(hdspm->pci);
+	}
 	return 0;
 }
 
-- 
2.25.1