[PATCH 3/3] ALSA: korg1212: Use common error handling code in two functions
From: SF Markus Elfring
Date: Thu Nov 16 2017 - 06:55:06 EST
From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
Date: Thu, 16 Nov 2017 11:55:58 +0100
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@xxxxxxxxxxxxxxxxxxxxx>
---
sound/pci/korg1212/korg1212.c | 62 ++++++++++++++++++++++---------------------
1 file changed, 32 insertions(+), 30 deletions(-)
diff --git a/sound/pci/korg1212/korg1212.c b/sound/pci/korg1212/korg1212.c
index dc701519d219..b908c7c986ab 100644
--- a/sound/pci/korg1212/korg1212.c
+++ b/sound/pci/korg1212/korg1212.c
@@ -2181,8 +2181,8 @@ static int snd_korg1212_create(struct snd_card *card, struct pci_dev *pci,
korg1212 = kzalloc(sizeof(*korg1212), GFP_KERNEL);
if (korg1212 == NULL) {
- pci_disable_device(pci);
- return -ENOMEM;
+ err = -ENOMEM;
+ goto disable_device;
}
korg1212->card = card;
@@ -2216,8 +2216,7 @@ static int snd_korg1212_create(struct snd_card *card, struct pci_dev *pci,
err = pci_request_regions(pci, "korg1212");
if (err < 0) {
kfree(korg1212);
- pci_disable_device(pci);
- return err;
+ goto disable_device;
}
korg1212->iomem = pci_resource_start(korg1212->pci, 0);
@@ -2242,8 +2241,8 @@ static int snd_korg1212_create(struct snd_card *card, struct pci_dev *pci,
if (!korg1212->iobase) {
snd_printk(KERN_ERR "korg1212: unable to remap memory region 0x%lx-0x%lx\n", korg1212->iomem,
korg1212->iomem + iomem_size - 1);
- snd_korg1212_free(korg1212);
- return -EBUSY;
+ err = -EBUSY;
+ goto free_sound_chip;
}
err = request_irq(pci->irq, snd_korg1212_interrupt,
@@ -2252,8 +2251,8 @@ static int snd_korg1212_create(struct snd_card *card, struct pci_dev *pci,
if (err) {
snd_printk(KERN_ERR "korg1212: unable to grab IRQ %d\n", pci->irq);
- snd_korg1212_free(korg1212);
- return -EBUSY;
+ err = -EBUSY;
+ goto free_sound_chip;
}
korg1212->irq = pci->irq;
@@ -2298,8 +2297,7 @@ static int snd_korg1212_create(struct snd_card *card, struct pci_dev *pci,
if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
sizeof(struct KorgSharedBuffer), &korg1212->dma_shared) < 0) {
snd_printk(KERN_ERR "korg1212: can not allocate shared buffer memory (%zd bytes)\n", sizeof(struct KorgSharedBuffer));
- snd_korg1212_free(korg1212);
- return -ENOMEM;
+ goto e_nomem;
}
korg1212->sharedBufferPtr = (struct KorgSharedBuffer *)korg1212->dma_shared.area;
korg1212->sharedBufferPhy = korg1212->dma_shared.addr;
@@ -2313,8 +2311,7 @@ static int snd_korg1212_create(struct snd_card *card, struct pci_dev *pci,
if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
korg1212->DataBufsSize, &korg1212->dma_play) < 0) {
snd_printk(KERN_ERR "korg1212: can not allocate play data buffer memory (%d bytes)\n", korg1212->DataBufsSize);
- snd_korg1212_free(korg1212);
- return -ENOMEM;
+ goto e_nomem;
}
korg1212->playDataBufsPtr = (struct KorgAudioBuffer *)korg1212->dma_play.area;
korg1212->PlayDataPhy = korg1212->dma_play.addr;
@@ -2325,8 +2322,7 @@ static int snd_korg1212_create(struct snd_card *card, struct pci_dev *pci,
if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
korg1212->DataBufsSize, &korg1212->dma_rec) < 0) {
snd_printk(KERN_ERR "korg1212: can not allocate record data buffer memory (%d bytes)\n", korg1212->DataBufsSize);
- snd_korg1212_free(korg1212);
- return -ENOMEM;
+ goto e_nomem;
}
korg1212->recordDataBufsPtr = (struct KorgAudioBuffer *)korg1212->dma_rec.area;
korg1212->RecDataPhy = korg1212->dma_rec.addr;
@@ -2353,16 +2349,14 @@ static int snd_korg1212_create(struct snd_card *card, struct pci_dev *pci,
err = request_firmware(&dsp_code, "korg/k1212.dsp", &pci->dev);
if (err < 0) {
snd_printk(KERN_ERR "firmware not available\n");
- snd_korg1212_free(korg1212);
- return err;
+ goto free_sound_chip;
}
if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
dsp_code->size, &korg1212->dma_dsp) < 0) {
snd_printk(KERN_ERR "korg1212: cannot allocate dsp code memory (%zd bytes)\n", dsp_code->size);
- snd_korg1212_free(korg1212);
release_firmware(dsp_code);
- return -ENOMEM;
+ goto e_nomem;
}
K1212_DEBUG_PRINTK("K1212_DEBUG: DSP Code area = 0x%p (0x%08x) %d bytes [%s]\n",
@@ -2379,10 +2373,8 @@ static int snd_korg1212_create(struct snd_card *card, struct pci_dev *pci,
K1212_DEBUG_PRINTK("K1212_DEBUG: Reboot Card - RC = %d [%s]\n", rc, stateName[korg1212->cardState]);
err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, korg1212, &ops);
- if (err < 0) {
- snd_korg1212_free(korg1212);
- return err;
- }
+ if (err < 0)
+ goto free_sound_chip;
snd_korg1212_EnableCardInterrupts(korg1212);
@@ -2429,6 +2421,15 @@ static int snd_korg1212_create(struct snd_card *card, struct pci_dev *pci,
* rchip = korg1212;
return 0;
+disable_device:
+ pci_disable_device(pci);
+ return err;
+
+e_nomem:
+ err = -ENOMEM;
+free_sound_chip:
+ snd_korg1212_free(korg1212);
+ return err;
}
/*
@@ -2457,10 +2458,8 @@ snd_korg1212_probe(struct pci_dev *pci,
return err;
err = snd_korg1212_create(card, pci, &korg1212);
- if (err < 0) {
- snd_card_free(card);
- return err;
- }
+ if (err < 0)
+ goto free_card;
strcpy(card->driver, "korg1212");
strcpy(card->shortname, "korg1212");
@@ -2470,13 +2469,16 @@ snd_korg1212_probe(struct pci_dev *pci,
K1212_DEBUG_PRINTK("K1212_DEBUG: %s\n", card->longname);
err = snd_card_register(card);
- if (err < 0) {
- snd_card_free(card);
- return err;
- }
+ if (err < 0)
+ goto free_card;
+
pci_set_drvdata(pci, card);
dev++;
return 0;
+
+free_card:
+ snd_card_free(card);
+ return err;
}
static void snd_korg1212_remove(struct pci_dev *pci)
--
2.15.0