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Subject[PATCH 2/3] ALSA: ymfpci: Use common error handling code in snd_ymfpci_create()
From
Date
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Wed, 6 Sep 2017 21:12:51 +0200

* Add a jump target so that a bit of exception handling can be better
reused at the end of this function.

This issue was detected by using the Coccinelle software.

* The script "checkpatch.pl" pointed information out like the following.

ERROR: do not use assignment in if condition

Thus fix a few source code places.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
sound/pci/ymfpci/ymfpci_main.c | 41 +++++++++++++++++++++--------------------
1 file changed, 21 insertions(+), 20 deletions(-)

diff --git a/sound/pci/ymfpci/ymfpci_main.c b/sound/pci/ymfpci/ymfpci_main.c
index edfd58248082..8ca2e41e5827 100644
--- a/sound/pci/ymfpci/ymfpci_main.c
+++ b/sound/pci/ymfpci/ymfpci_main.c
@@ -2399,59 +2399,60 @@ int snd_ymfpci_create(struct snd_card *card,
dev_err(chip->card->dev,
"unable to grab memory region 0x%lx-0x%lx\n",
chip->reg_area_phys, chip->reg_area_phys + 0x8000 - 1);
- snd_ymfpci_free(chip);
- return -EBUSY;
+ err = -EBUSY;
+ goto free_chip;
}
if (request_irq(pci->irq, snd_ymfpci_interrupt, IRQF_SHARED,
KBUILD_MODNAME, chip)) {
dev_err(chip->card->dev, "unable to grab IRQ %d\n", pci->irq);
- snd_ymfpci_free(chip);
- return -EBUSY;
+ err = -EBUSY;
+ goto free_chip;
}
chip->irq = pci->irq;

snd_ymfpci_aclink_reset(pci);
if (snd_ymfpci_codec_ready(chip, 0) < 0) {
- snd_ymfpci_free(chip);
- return -EIO;
+ err = -EIO;
+ goto free_chip;
}

err = snd_ymfpci_request_firmware(chip);
if (err < 0) {
dev_err(chip->card->dev, "firmware request failed: %d\n", err);
- snd_ymfpci_free(chip);
- return err;
+ goto free_chip;
}
snd_ymfpci_download_image(chip);

udelay(100); /* seems we need a delay after downloading image.. */

if (snd_ymfpci_memalloc(chip) < 0) {
- snd_ymfpci_free(chip);
- return -EIO;
+ err = -EIO;
+ goto free_chip;
}

- if ((err = snd_ymfpci_ac3_init(chip)) < 0) {
- snd_ymfpci_free(chip);
- return err;
- }
+ err = snd_ymfpci_ac3_init(chip);
+ if (err < 0)
+ goto free_chip;

#ifdef CONFIG_PM_SLEEP
chip->saved_regs = kmalloc(YDSXGR_NUM_SAVED_REGS * sizeof(u32),
GFP_KERNEL);
if (chip->saved_regs == NULL) {
- snd_ymfpci_free(chip);
- return -ENOMEM;
+ err = -ENOMEM;
+ goto free_chip;
}
#endif

- if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
- snd_ymfpci_free(chip);
- return err;
- }
+ err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
+ if (err < 0)
+ goto free_chip;

snd_ymfpci_proc_init(card, chip);

*rchip = chip;
return 0;
+
+free_chip:
+ snd_ymfpci_free(chip);
+ return err;
}
--
2.14.1
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