[PATCH 23/39] ALSA: rme96: Fix the missing snd_card_free() call at probe error

[Takashi Iwai]

The previous cleanup with devres may lead to the incorrect release
orders at the probe error handling due to the devres's nature.  Until
we register the card, snd_card_free() has to be called at first for
releasing the stuff properly when the driver tries to manage and
release the stuff via card->private_free().

This patch fixes it by calling snd_card_free() on the error from the
probe callback using a new helper function.

Fixes: df06df7cc997 ("ALSA: rme96: Allocate resources with device-managed APIs")
Cc: <stable at vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai at suse.de>
---
 sound/pci/rme96.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/sound/pci/rme96.c b/sound/pci/rme96.c
index 8fc811504920..bccb7e0d3d11 100644
--- a/sound/pci/rme96.c
+++ b/sound/pci/rme96.c
@@ -2430,8 +2430,8 @@ static void snd_rme96_card_free(struct snd_card *card)
 }
 
 static int
-snd_rme96_probe(struct pci_dev *pci,
-		const struct pci_device_id *pci_id)
+__snd_rme96_probe(struct pci_dev *pci,
+		  const struct pci_device_id *pci_id)
 {
 	static int dev;
 	struct rme96 *rme96;
@@ -2498,6 +2498,12 @@ snd_rme96_probe(struct pci_dev *pci,
 	return 0;
 }
 
+static int snd_rme96_probe(struct pci_dev *pci,
+			   const struct pci_device_id *pci_id)
+{
+	return snd_card_free_on_error(&pci->dev, __snd_rme96_probe(pci, pci_id));
+}
+
 static struct pci_driver rme96_driver = {
 	.name = KBUILD_MODNAME,
 	.id_table = snd_rme96_ids,
-- 
2.31.1