From: Robert Krakora <rob.krakora@messagenetsystems.com>
Date: Sun, 8 Feb 2009 16:09:11 +0000 (-0300)
Subject: V4L/DVB (10518): em28xx: Fix for em28xx memory leak and function rename
X-Git-Tag: firefly_0821_release~15196^2~528
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=aa5a1821859c9c2915bc00e79f6e01e619df6e8f;p=firefly-linux-kernel-4.4.55.git

V4L/DVB (10518): em28xx: Fix for em28xx memory leak and function rename

Fix for em28xx memory leak and function rename

Signed-off-by: Robert Krakora <rob.krakora@messagenetsystems.com>
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---

diff --git a/drivers/media/video/em28xx/em28xx-audio.c b/drivers/media/video/em28xx/em28xx-audio.c
index 7a62c77b8485..c698d3c9690f 100644
--- a/drivers/media/video/em28xx/em28xx-audio.c
+++ b/drivers/media/video/em28xx/em28xx-audio.c
@@ -56,7 +56,7 @@ MODULE_PARM_DESC(debug, "activates debug info");
 
 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
 
-static int em28xx_isoc_audio_deinit(struct em28xx *dev)
+static int em28xx_deinit_isoc_audio(struct em28xx *dev)
 {
 	int i;
 
@@ -66,6 +66,7 @@ static int em28xx_isoc_audio_deinit(struct em28xx *dev)
 			usb_kill_urb(dev->adev.urb[i]);
 		else
 			usb_unlink_urb(dev->adev.urb[i]);
+
 		usb_free_urb(dev->adev.urb[i]);
 		dev->adev.urb[i] = NULL;
 
@@ -87,6 +88,20 @@ static void em28xx_audio_isocirq(struct urb *urb)
 	unsigned int             stride;
 	struct snd_pcm_substream *substream;
 	struct snd_pcm_runtime   *runtime;
+
+	switch (urb->status) {
+	case 0:             /* success */
+	case -ETIMEDOUT:    /* NAK */
+		break;
+	case -ECONNRESET:   /* kill */
+	case -ENOENT:
+	case -ESHUTDOWN:
+		return;
+	default:            /* error */
+		dprintk("urb completition error %d.\n", urb->status);
+		break;
+	}
+
 	if (dev->adev.capture_pcm_substream) {
 		substream = dev->adev.capture_pcm_substream;
 		runtime = substream->runtime;
@@ -197,8 +212,7 @@ static int em28xx_init_audio_isoc(struct em28xx *dev)
 	for (i = 0; i < EM28XX_AUDIO_BUFS; i++) {
 		errCode = usb_submit_urb(dev->adev.urb[i], GFP_ATOMIC);
 		if (errCode) {
-			em28xx_isoc_audio_deinit(dev);
-
+			em28xx_deinit_isoc_audio(dev);
 			return errCode;
 		}
 	}
@@ -218,7 +232,7 @@ static int em28xx_cmd(struct em28xx *dev, int cmd, int arg)
 			em28xx_init_audio_isoc(dev);
 		} else if (dev->adev.capture_stream == STREAM_ON && arg == 0) {
 			dev->adev.capture_stream = STREAM_OFF;
-			em28xx_isoc_audio_deinit(dev);
+			em28xx_deinit_isoc_audio(dev);
 		} else {
 			printk(KERN_ERR "An underrun very likely occurred. "
 					"Ignoring it.\n");
diff --git a/drivers/media/video/em28xx/em28xx-core.c b/drivers/media/video/em28xx/em28xx-core.c
index 3ac8ce0adec3..43f1d0e4c549 100644
--- a/drivers/media/video/em28xx/em28xx-core.c
+++ b/drivers/media/video/em28xx/em28xx-core.c
@@ -827,6 +827,19 @@ static void em28xx_irq_callback(struct urb *urb)
 	struct em28xx *dev = container_of(dma_q, struct em28xx, vidq);
 	int rc, i;
 
+	switch (urb->status) {
+	case 0:             /* success */
+	case -ETIMEDOUT:    /* NAK */
+		break;
+	case -ECONNRESET:   /* kill */
+	case -ENOENT:
+	case -ESHUTDOWN:
+		return;
+	default:            /* error */
+		em28xx_isocdbg("urb completition error %d.\n", urb->status);
+		break;
+	}
+
 	/* Copy data from URB */
 	spin_lock(&dev->slock);
 	rc = dev->isoc_ctl.isoc_copy(dev, urb);