From: Markus Elfring <elfring@users.sourceforge.net> Date: Wed, 6 Sep 2017 08:18:30 +0200 Add jump targets so that a bit of exception handling can be better reused at the end of these functions. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> --- v2: * An approach to make a few checks for a failure predicate a bit safer was rejected so far. * Extra blank lines were added before labels. sound/pci/maestro3.c | 57 ++++++++++++++++++++++++++-------------------------- 1 file changed, 28 insertions(+), 29 deletions(-) diff --git a/sound/pci/maestro3.c b/sound/pci/maestro3.c index 97ac80af4447..8f20dec97843 100644 --- a/sound/pci/maestro3.c +++ b/sound/pci/maestro3.c @@ -2622,22 +2622,18 @@ snd_m3_create(struct snd_card *card, struct pci_dev *pci, err = request_firmware(&chip->assp_kernel_image, "ess/maestro3_assp_kernel.fw", &pci->dev); - if (err < 0) { - snd_m3_free(chip); - return err; - } + if (err < 0) + goto free_chip; err = request_firmware(&chip->assp_minisrc_image, "ess/maestro3_assp_minisrc.fw", &pci->dev); - if (err < 0) { - snd_m3_free(chip); - return err; - } + if (err < 0) + goto free_chip; + + err = pci_request_regions(pci, card->driver); + if (err < 0) + goto free_chip; - if ((err = pci_request_regions(pci, card->driver)) < 0) { - snd_m3_free(chip); - return err; - } chip->iobase = pci_resource_start(pci, 0); /* just to be sure */ @@ -2655,8 +2651,8 @@ snd_m3_create(struct snd_card *card, struct pci_dev *pci, if (request_irq(pci->irq, snd_m3_interrupt, IRQF_SHARED, KBUILD_MODNAME, chip)) { dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq); - snd_m3_free(chip); - return -ENOMEM; + err = -ENOMEM; + goto free_chip; } chip->irq = pci->irq; @@ -2666,10 +2662,9 @@ snd_m3_create(struct snd_card *card, struct pci_dev *pci, dev_warn(card->dev, "can't allocate apm buffer\n"); #endif - if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { - snd_m3_free(chip); - return err; - } + err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); + if (err < 0) + goto free_chip; if ((err = snd_m3_mixer(chip)) < 0) return err; @@ -2699,6 +2694,10 @@ snd_m3_create(struct snd_card *card, struct pci_dev *pci, *chip_ret = chip; return 0; + +free_chip: + snd_m3_free(chip); + return err; } /* @@ -2741,23 +2740,19 @@ snd_m3_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) break; } - if ((err = snd_m3_create(card, pci, - external_amp[dev], - amp_gpio[dev], - &chip)) < 0) { - snd_card_free(card); - return err; - } + err = snd_m3_create(card, pci, external_amp[dev], amp_gpio[dev], &chip); + if (err < 0) + goto free_card; + card->private_data = chip; sprintf(card->shortname, "ESS %s PCI", card->driver); sprintf(card->longname, "%s at 0x%lx, irq %d", card->shortname, chip->iobase, chip->irq); - if ((err = snd_card_register(card)) < 0) { - snd_card_free(card); - return err; - } + err = snd_card_register(card); + if (err < 0) + goto free_card; #if 0 /* TODO: not supported yet */ /* TODO enable MIDI IRQ and I/O */ @@ -2772,6 +2767,10 @@ snd_m3_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) pci_set_drvdata(pci, card); dev++; return 0; + +free_card: + snd_card_free(card); + return err; } static void snd_m3_remove(struct pci_dev *pci) -- 2.14.1