1 files changed, 15 insertions, 24 deletions

diff --git a/sound/pci/maestro3.c b/sound/pci/maestro3.c
index f4d211970d7e..3353980d5cd8 100644
--- a/sound/pci/maestro3.c
+++ b/sound/pci/maestro3.c
@@ -1096,7 +1096,7 @@ snd_m3_pcm_trigger(struct snd_pcm_substream *subs, int cmd)
 	if (snd_BUG_ON(!s))
 		return -ENXIO;
 
-	spin_lock(&chip->reg_lock);
+	guard(spinlock)(&chip->reg_lock);
 	switch (cmd) {
 	case SNDRV_PCM_TRIGGER_START:
 	case SNDRV_PCM_TRIGGER_RESUME:
@@ -1117,7 +1117,6 @@ snd_m3_pcm_trigger(struct snd_pcm_substream *subs, int cmd)
 		}
 		break;
 	}
-	spin_unlock(&chip->reg_lock);
 	return err;
 }
 
@@ -1412,7 +1411,7 @@ snd_m3_pcm_prepare(struct snd_pcm_substream *subs)
 	    runtime->rate < 8000)
 		return -EINVAL;
 
-	spin_lock_irq(&chip->reg_lock);
+	guard(spinlock_irq)(&chip->reg_lock);
 
 	snd_m3_pcm_setup1(chip, s, subs);
 
@@ -1423,8 +1422,6 @@ snd_m3_pcm_prepare(struct snd_pcm_substream *subs)
 
 	snd_m3_pcm_setup2(chip, s, runtime);
 
-	spin_unlock_irq(&chip->reg_lock);
-
 	return 0;
 }
 
@@ -1466,9 +1463,8 @@ snd_m3_pcm_pointer(struct snd_pcm_substream *subs)
 	if (snd_BUG_ON(!s))
 		return 0;
 
-	spin_lock(&chip->reg_lock);
+	guard(spinlock)(&chip->reg_lock);
 	ptr = snd_m3_get_pointer(chip, s, subs);
-	spin_unlock(&chip->reg_lock);
 	return bytes_to_frames(subs->runtime, ptr);
 }
 
@@ -1629,13 +1625,12 @@ static irqreturn_t snd_m3_interrupt(int irq, void *dev_id)
 			if (ctl & DSP2HOST_REQ_TIMER) {
 				outb(DSP2HOST_REQ_TIMER, chip->iobase + ASSP_HOST_INT_STATUS);
 				/* update adc/dac info if it was a timer int */
-				spin_lock(&chip->reg_lock);
+				guard(spinlock)(&chip->reg_lock);
 				for (i = 0; i < chip->num_substreams; i++) {
 					struct m3_dma *s = &chip->substreams[i];
 					if (s->running)
 						snd_m3_update_ptr(chip, s);
 				}
-				spin_unlock(&chip->reg_lock);
 			}
 		}
 	}
@@ -1707,18 +1702,16 @@ snd_m3_substream_open(struct snd_m3 *chip, struct snd_pcm_substream *subs)
 	int i;
 	struct m3_dma *s;
 
-	spin_lock_irq(&chip->reg_lock);
+	guard(spinlock_irq)(&chip->reg_lock);
 	for (i = 0; i < chip->num_substreams; i++) {
 		s = &chip->substreams[i];
 		if (! s->opened)
 			goto __found;
 	}
-	spin_unlock_irq(&chip->reg_lock);
 	return -ENOMEM;
 __found:
 	s->opened = 1;
 	s->running = 0;
-	spin_unlock_irq(&chip->reg_lock);
 
 	subs->runtime->private_data = s;
 	s->substream = subs;
@@ -1742,7 +1735,7 @@ snd_m3_substream_close(struct snd_m3 *chip, struct snd_pcm_substream *subs)
 	if (s == NULL)
 		return; /* not opened properly */
 
-	spin_lock_irq(&chip->reg_lock);
+	guard(spinlock_irq)(&chip->reg_lock);
 	if (s->substream && s->running)
 		snd_m3_pcm_stop(chip, s, s->substream); /* does this happen? */
 	if (s->in_lists) {
@@ -1753,7 +1746,6 @@ snd_m3_substream_close(struct snd_m3 *chip, struct snd_pcm_substream *subs)
 	}
 	s->running = 0;
 	s->opened = 0;
-	spin_unlock_irq(&chip->reg_lock);
 }
 
 static int
@@ -1846,7 +1838,7 @@ snd_m3_pcm(struct snd_m3 * chip, int device)
 
 	pcm->private_data = chip;
 	pcm->info_flags = 0;
-	strcpy(pcm->name, chip->card->driver);
+	strscpy(pcm->name, chip->card->driver);
 	chip->pcm = pcm;
 	
 	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
@@ -2339,14 +2331,13 @@ static void snd_m3_free(struct snd_card *card)
 	cancel_work_sync(&chip->hwvol_work);
 
 	if (chip->substreams) {
-		spin_lock_irq(&chip->reg_lock);
+		guard(spinlock_irq)(&chip->reg_lock);
 		for (i = 0; i < chip->num_substreams; i++) {
 			s = &chip->substreams[i];
 			/* check surviving pcms; this should not happen though.. */
 			if (s->substream && s->running)
 				snd_m3_pcm_stop(chip, s, s->substream);
 		}
-		spin_unlock_irq(&chip->reg_lock);
 	}
 	if (chip->iobase) {
 		outw(0, chip->iobase + HOST_INT_CTRL); /* disable ints */
@@ -2552,7 +2543,7 @@ snd_m3_create(struct snd_card *card, struct pci_dev *pci,
 	if (err < 0)
 		return err;
 
-	err = pci_request_regions(pci, card->driver);
+	err = pcim_request_all_regions(pci, card->driver);
 	if (err < 0)
 		return err;
 
@@ -2580,9 +2571,9 @@ snd_m3_create(struct snd_card *card, struct pci_dev *pci,
 
 	if (IS_ENABLED(CONFIG_PM_SLEEP)) {
 		chip->suspend_mem =
-			vmalloc(array_size(sizeof(u16),
-					   REV_B_CODE_MEMORY_LENGTH +
-					   REV_B_DATA_MEMORY_LENGTH));
+			vmalloc_array(REV_B_CODE_MEMORY_LENGTH +
+				      REV_B_DATA_MEMORY_LENGTH,
+				      sizeof(u16));
 		if (!chip->suspend_mem)
 			dev_warn(card->dev, "can't allocate apm buffer\n");
 	}
@@ -2648,14 +2639,14 @@ __snd_m3_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
 	switch (pci->device) {
 	case PCI_DEVICE_ID_ESS_ALLEGRO:
 	case PCI_DEVICE_ID_ESS_ALLEGRO_1:
-		strcpy(card->driver, "Allegro");
+		strscpy(card->driver, "Allegro");
 		break;
 	case PCI_DEVICE_ID_ESS_CANYON3D_2LE:
 	case PCI_DEVICE_ID_ESS_CANYON3D_2:
-		strcpy(card->driver, "Canyon3D-2");
+		strscpy(card->driver, "Canyon3D-2");
 		break;
 	default:
-		strcpy(card->driver, "Maestro3");
+		strscpy(card->driver, "Maestro3");
 		break;
 	}