[PATCH] kfree cleanup: drivers/media

This is the drivers/media/ part of the big kfree cleanup patch.

Remove pointless checks for NULL prior to calling kfree() in drivers/media/.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Cc: Johannes Stezenbach <js@linuxtv.org>
Cc: Michael Krufky <mkrufky@m1k.net>
Cc: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
Acked-by : Manu Abraham <manu@linuxtv.org>
Acked-by: Andreas Oberritter <obi@linuxtv.org>
Acked-by: Wilson Michaels <wilsonmichaels@earthlink.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

6 files changed, 17 insertions, 30 deletions

diff --git a/drivers/media/video/arv.c b/drivers/media/video/arv.c
index 87fd3a7bb392..0823ddaf7004 100644
--- a/drivers/media/video/arv.c
+++ b/drivers/media/video/arv.c
@@ -865,10 +865,8 @@ out_dev:
 
 out_irq:
 #endif
-	for (i = 0; i < MAX_AR_HEIGHT; i++) {
-		if (ar->frame[i])
-			kfree(ar->frame[i]);
-	}
+	for (i = 0; i < MAX_AR_HEIGHT; i++)
+		kfree(ar->frame[i]);
 
 out_line_buff:
 #if USE_INT
@@ -899,10 +897,8 @@ static void __exit ar_cleanup_module(void)
 #if USE_INT
 	free_irq(M32R_IRQ_INT3, ar);
 #endif
-	for (i = 0; i < MAX_AR_HEIGHT; i++) {
-		if (ar->frame[i])
-			kfree(ar->frame[i]);
-	}
+	for (i = 0; i < MAX_AR_HEIGHT; i++)
+		kfree(ar->frame[i]);
 #if USE_INT
 	kfree(ar->line_buff);
 #endif
diff --git a/drivers/media/video/bttv-driver.c b/drivers/media/video/bttv-driver.c
index c062a017491e..d538a994ff04 100644
--- a/drivers/media/video/bttv-driver.c
+++ b/drivers/media/video/bttv-driver.c
@@ -1951,8 +1951,7 @@ static int setup_window(struct bttv_fh *fh, struct bttv *btv,
 	}
 
 	down(&fh->cap.lock);
-	if (fh->ov.clips)
-		kfree(fh->ov.clips);
+	kfree(fh->ov.clips);
 	fh->ov.clips    = clips;
 	fh->ov.nclips   = n;
 
@@ -2723,8 +2722,7 @@ static int bttv_do_ioctl(struct inode *inode, struct file *file,
 			fh->ov.w.height = fb->fmt.height;
 			btv->init.ov.w.width  = fb->fmt.width;
 			btv->init.ov.w.height = fb->fmt.height;
-			if (fh->ov.clips)
-				kfree(fh->ov.clips);
+			kfree(fh->ov.clips);
 			fh->ov.clips = NULL;
 			fh->ov.nclips = 0;
 
diff --git a/drivers/media/video/v4l1-compat.c b/drivers/media/video/v4l1-compat.c
index 59bb71381a1b..d679ca23ded7 100644
--- a/drivers/media/video/v4l1-compat.c
+++ b/drivers/media/video/v4l1-compat.c
@@ -1006,10 +1006,8 @@ v4l_compat_translate_ioctl(struct inode         *inode,
 		break;
 	}
 
-	if (cap2)
-		kfree(cap2);
-	if (fmt2)
-		kfree(fmt2);
+	kfree(cap2);
+	kfree(fmt2);
 	return err;
 }
 
diff --git a/drivers/media/video/videocodec.c b/drivers/media/video/videocodec.c
index c9d5f1a873cc..839db622040d 100644
--- a/drivers/media/video/videocodec.c
+++ b/drivers/media/video/videocodec.c
@@ -353,8 +353,7 @@ videocodec_build_table (void)
 	dprintk(3, "videocodec_build table: %d entries, %d bytes\n", i,
 		size);
 
-	if (videocodec_buf)
-		kfree(videocodec_buf);
+	kfree(videocodec_buf);
 	videocodec_buf = (char *) kmalloc(size, GFP_KERNEL);
 
 	i = 0;
@@ -471,8 +470,7 @@ videocodec_exit (void)
 {
 #ifdef CONFIG_PROC_FS
 	remove_proc_entry("videocodecs", NULL);
-	if (videocodec_buf)
-		kfree(videocodec_buf);
+	kfree(videocodec_buf);
 #endif
 }
 
diff --git a/drivers/media/video/videodev.c b/drivers/media/video/videodev.c
index 06df15f75de9..83c49f9610d0 100644
--- a/drivers/media/video/videodev.c
+++ b/drivers/media/video/videodev.c
@@ -215,8 +215,7 @@ video_usercopy(struct inode *inode, struct file *file,
 	}
 
 out:
-	if (mbuf)
-		kfree(mbuf);
+	kfree(mbuf);
 	return err;
 }
 
diff --git a/drivers/media/video/zoran_card.c b/drivers/media/video/zoran_card.c
index eed2acea1779..39a0d238900e 100644
--- a/drivers/media/video/zoran_card.c
+++ b/drivers/media/video/zoran_card.c
@@ -1057,10 +1057,8 @@ zr36057_init (struct zoran *zr)
 			KERN_ERR
 			"%s: zr36057_init() - kmalloc (STAT_COM) failed\n",
 			ZR_DEVNAME(zr));
-		if (vdev)
-			kfree(vdev);
-		if (mem)
-			kfree((void *)mem);
+		kfree(vdev);
+		kfree((void *)mem);
 		return -ENOMEM;
 	}
 	memset((void *) mem, 0, mem_needed);
@@ -1105,15 +1103,15 @@ zoran_release (struct zoran *zr)
 	/* unregister videocodec bus */
 	if (zr->codec) {
 		struct videocodec_master *master = zr->codec->master_data;
+
 		videocodec_detach(zr->codec);
-		if (master)
-			kfree(master);
+		kfree(master);
 	}
 	if (zr->vfe) {
 		struct videocodec_master *master = zr->vfe->master_data;
+
 		videocodec_detach(zr->vfe);
-		if (master)
-			kfree(master);
+		kfree(master);
 	}
 
 	/* unregister i2c bus */