[ALSA] fix some memory leaks

Modules: Generic drivers,ES18xx driver,CS46xx driver This patch fixes two memory leaks spotted by the Coverity checker. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
git-mirror · Mar 22, 2006 · 202728d · 202728d
1 parent 3e96443
commit 202728d
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Showing 3 changed files with 9 additions and 3 deletions.
diff --git a/sound/drivers/serial-u16550.c b/sound/drivers/serial-u16550.c
@@ -789,6 +789,7 @@ static int __init snd_uart16550_create(struct snd_card *card,
 
 	if ((err = snd_uart16550_detect(uart)) <= 0) {
 		printk(KERN_ERR "no UART detected at 0x%lx\n", iobase);
+		snd_uart16550_free(uart);
 		return -ENODEV;
 	}
 

diff --git a/sound/isa/es18xx.c b/sound/isa/es18xx.c
@@ -2083,6 +2083,7 @@ static int __devinit snd_audiodrive_pnp(int dev, struct snd_audiodrive *acard,
 	err = pnp_activate_dev(acard->devc);
 	if (err < 0) {
 		snd_printk(KERN_ERR PFX "PnP control configure failure (out of resources?)\n");
+		kfree(cfg);
 		return -EAGAIN;
 	}
 	snd_printdd("pnp: port=0x%lx\n", pnp_port_start(acard->devc, 0));

diff --git a/sound/pci/cs46xx/dsp_spos.c b/sound/pci/cs46xx/dsp_spos.c
@@ -237,7 +237,7 @@ struct dsp_spos_instance *cs46xx_dsp_spos_create (struct snd_cs46xx * chip)
 
 	if (ins->symbol_table.symbols == NULL) {
 		cs46xx_dsp_spos_destroy(chip);
-		return NULL;
+		goto error;
 	}
 
 	ins->code.offset = 0;
@@ -246,7 +246,7 @@ struct dsp_spos_instance *cs46xx_dsp_spos_create (struct snd_cs46xx * chip)
 
 	if (ins->code.data == NULL) {
 		cs46xx_dsp_spos_destroy(chip);
-		return NULL;
+		goto error;
 	}
 
 	ins->nscb = 0;
@@ -257,7 +257,7 @@ struct dsp_spos_instance *cs46xx_dsp_spos_create (struct snd_cs46xx * chip)
 
 	if (ins->modules == NULL) {
 		cs46xx_dsp_spos_destroy(chip);
-		return NULL;
+		goto error;
 	}
 
 	/* default SPDIF input sample rate
@@ -280,6 +280,10 @@ struct dsp_spos_instance *cs46xx_dsp_spos_create (struct snd_cs46xx * chip)
 	 /* left and right validity bits */ (1 << 13) | (1 << 12);
 
 	return ins;
+
+error:
+	kfree(ins);
+	return NULL;
 }
 
 void  cs46xx_dsp_spos_destroy (struct snd_cs46xx * chip)