ALSA: ali5451: Embed suspend image into struct snd_ali

Instead of allocating the memory with an additional devm_kmalloc(),
just put the image into the existing struct snd_ali.  The allocation
size isn't too big, hence it works better with less allocation calls.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20240207155140.18238-16-tiwai@suse.deSigned-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/ali5451/ali5451.c

@@ -244,7 +244,7 @@ struct snd_ali {
 	spinlock_t	voice_alloc;
 
 #ifdef CONFIG_PM_SLEEP
-	struct snd_ali_image *image;
+	struct snd_ali_image image;
 #endif
 };
 
@@ -1829,13 +1829,9 @@ static int ali_suspend(struct device *dev)
 {
 	struct snd_card *card = dev_get_drvdata(dev);
 	struct snd_ali *chip = card->private_data;
-	struct snd_ali_image *im;
+	struct snd_ali_image *im = &chip->image;
 	int i, j;
 
-	im = chip->image;
-	if (!im)
-		return 0;
-
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 	for (i = 0; i < chip->num_of_codecs; i++)
 		snd_ac97_suspend(chip->ac97[i]);
@@ -1872,13 +1868,9 @@ static int ali_resume(struct device *dev)
 {
 	struct snd_card *card = dev_get_drvdata(dev);
 	struct snd_ali *chip = card->private_data;
-	struct snd_ali_image *im;
+	struct snd_ali_image *im = &chip->image;
 	int i, j;
 
-	im = chip->image;
-	if (!im)
-		return 0;
-
 	spin_lock_irq(&chip->reg_lock);
 	
 	for (i = 0; i < ALI_CHANNELS; i++) {
@@ -2112,13 +2104,6 @@ static int snd_ali_create(struct snd_card *card,
 		return err;
 	}
 
-#ifdef CONFIG_PM_SLEEP
-	codec->image = devm_kmalloc(&pci->dev, sizeof(*codec->image),
-				    GFP_KERNEL);
-	if (!codec->image)
-		dev_warn(card->dev, "can't allocate apm buffer\n");
-#endif
-
 	snd_ali_enable_address_interrupt(codec);
 	codec->hw_initialized = 1;
 	return 0;