diff --git a/drivers/media/common/saa7146_core.c b/drivers/media/common/saa7146_core.c
index ef3e54cd9407..ba6701e97671 100644
--- a/drivers/media/common/saa7146_core.c
+++ b/drivers/media/common/saa7146_core.c
@@ -27,7 +27,7 @@ static int saa7146_num;
 
 unsigned int saa7146_debug;
 
-module_param(saa7146_debug, int, 0644);
+module_param(saa7146_debug, uint, 0644);
 MODULE_PARM_DESC(saa7146_debug, "debug level (default: 0)");
 
 #if 0
@@ -130,10 +130,10 @@ static struct scatterlist* vmalloc_to_sg(unsigned char *virt, int nr_pages)
 /********************************************************************************/
 /* common page table functions */
 
-char *saa7146_vmalloc_build_pgtable(struct pci_dev *pci, long length, struct saa7146_pgtable *pt)
+void *saa7146_vmalloc_build_pgtable(struct pci_dev *pci, long length, struct saa7146_pgtable *pt)
 {
 	int pages = (length+PAGE_SIZE-1)/PAGE_SIZE;
-	char *mem = vmalloc_32(length);
+	void *mem = vmalloc_32(length);
 	int slen = 0;
 
 	if (NULL == mem)
@@ -168,7 +168,7 @@ err_null:
 	return NULL;
 }
 
-void saa7146_vfree_destroy_pgtable(struct pci_dev *pci, char *mem, struct saa7146_pgtable *pt)
+void saa7146_vfree_destroy_pgtable(struct pci_dev *pci, void *mem, struct saa7146_pgtable *pt)
 {
 	pci_unmap_sg(pci, pt->slist, pt->nents, PCI_DMA_FROMDEVICE);
 	saa7146_pgtable_free(pci, pt);
diff --git a/drivers/media/common/saa7146_video.c b/drivers/media/common/saa7146_video.c
index e3d04a4cef4d..664280c78ff2 100644
--- a/drivers/media/common/saa7146_video.c
+++ b/drivers/media/common/saa7146_video.c
@@ -889,9 +889,9 @@ int saa7146_video_do_ioctl(struct inode *inode, struct file *file, unsigned int
 
 		DEB_EE(("VIDIOC_QUERYCAP\n"));
 
-		strcpy(cap->driver, "saa7146 v4l2");
-		strlcpy(cap->card, dev->ext->name, sizeof(cap->card));
-		sprintf(cap->bus_info,"PCI:%s", pci_name(dev->pci));
+		strcpy((char *)cap->driver, "saa7146 v4l2");
+		strlcpy((char *)cap->card, dev->ext->name, sizeof(cap->card));
+		sprintf((char *)cap->bus_info,"PCI:%s", pci_name(dev->pci));
 		cap->version = SAA7146_VERSION_CODE;
 		cap->capabilities =
 			V4L2_CAP_VIDEO_CAPTURE |
@@ -968,7 +968,7 @@ int saa7146_video_do_ioctl(struct inode *inode, struct file *file, unsigned int
 			}
 			memset(f,0,sizeof(*f));
 			f->index = index;
-			strlcpy(f->description,formats[index].name,sizeof(f->description));
+			strlcpy((char *)f->description,formats[index].name,sizeof(f->description));
 			f->pixelformat = formats[index].pixelformat;
 			break;
 		}
diff --git a/drivers/media/dvb/ttpci/av7110_av.c b/drivers/media/dvb/ttpci/av7110_av.c
index 58678c05aa53..f7a8219d7cfe 100644
--- a/drivers/media/dvb/ttpci/av7110_av.c
+++ b/drivers/media/dvb/ttpci/av7110_av.c
@@ -391,7 +391,7 @@ static int get_video_format(struct av7110 *av7110, u8 *buf, int count)
  ****************************************************************************/
 
 static inline long aux_ring_buffer_write(struct dvb_ringbuffer *rbuf,
-					 const char *buf, unsigned long count)
+					 const u8 *buf, unsigned long count)
 {
 	unsigned long todo = count;
 	int free;
@@ -436,7 +436,7 @@ static void play_audio_cb(u8 *buf, int count, void *priv)
 #define FREE_COND (dvb_ringbuffer_free(&av7110->avout) >= 20 * 1024 && \
 		   dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)
 
-static ssize_t dvb_play(struct av7110 *av7110, const u8 __user *buf,
+static ssize_t dvb_play(struct av7110 *av7110, const char __user *buf,
 			unsigned long count, int nonblock, int type)
 {
 	unsigned long todo = count, n;
@@ -499,7 +499,7 @@ static ssize_t dvb_play_kernel(struct av7110 *av7110, const u8 *buf,
 	return count - todo;
 }
 
-static ssize_t dvb_aplay(struct av7110 *av7110, const u8 __user *buf,
+static ssize_t dvb_aplay(struct av7110 *av7110, const char __user *buf,
 			 unsigned long count, int nonblock, int type)
 {
 	unsigned long todo = count, n;
@@ -959,7 +959,7 @@ static u8 iframe_header[] = { 0x00, 0x00, 0x01, 0xe0, 0x00, 0x00, 0x80, 0x00, 0x
 
 #define MIN_IFRAME 400000
 
-static int play_iframe(struct av7110 *av7110, u8 __user *buf, unsigned int len, int nonblock)
+static int play_iframe(struct av7110 *av7110, char __user *buf, unsigned int len, int nonblock)
 {
 	int i, n;
 
diff --git a/drivers/media/dvb/ttpci/av7110_ca.c b/drivers/media/dvb/ttpci/av7110_ca.c
index e1c1294bb767..c58e3fc509ed 100644
--- a/drivers/media/dvb/ttpci/av7110_ca.c
+++ b/drivers/media/dvb/ttpci/av7110_ca.c
@@ -151,7 +151,7 @@ static ssize_t ci_ll_write(struct dvb_ringbuffer *cibuf, struct file *file,
 {
 	int free;
 	int non_blocking = file->f_flags & O_NONBLOCK;
-	char *page = (char *)__get_free_page(GFP_USER);
+	u8 *page = (u8 *)__get_free_page(GFP_USER);
 	int res;
 
 	if (!page)
@@ -208,7 +208,7 @@ static ssize_t ci_ll_read(struct dvb_ringbuffer *cibuf, struct file *file,
 		return -EINVAL;
 	DVB_RINGBUFFER_SKIP(cibuf, 2);
 
-	return dvb_ringbuffer_read(cibuf, buf, len, 1);
+	return dvb_ringbuffer_read(cibuf, (u8 *)buf, len, 1);
 }
 
 static int dvb_ca_open(struct inode *inode, struct file *file)
diff --git a/drivers/media/dvb/ttpci/av7110_hw.c b/drivers/media/dvb/ttpci/av7110_hw.c
index 70aee4eb5da4..515e8232e020 100644
--- a/drivers/media/dvb/ttpci/av7110_hw.c
+++ b/drivers/media/dvb/ttpci/av7110_hw.c
@@ -158,7 +158,7 @@ static int load_dram(struct av7110 *av7110, u32 *data, int len)
 		}
 		dprintk(4, "writing DRAM block %d\n", i);
 		mwdebi(av7110, DEBISWAB, bootblock,
-		       ((char*)data) + i * AV7110_BOOT_MAX_SIZE, AV7110_BOOT_MAX_SIZE);
+		       ((u8 *)data) + i * AV7110_BOOT_MAX_SIZE, AV7110_BOOT_MAX_SIZE);
 		bootblock ^= 0x1400;
 		iwdebi(av7110, DEBISWAB, AV7110_BOOT_BASE, swab32(base), 4);
 		iwdebi(av7110, DEBINOSWAP, AV7110_BOOT_SIZE, AV7110_BOOT_MAX_SIZE, 2);
@@ -173,10 +173,10 @@ static int load_dram(struct av7110 *av7110, u32 *data, int len)
 		}
 		if (rest > 4)
 			mwdebi(av7110, DEBISWAB, bootblock,
-			       ((char*)data) + i * AV7110_BOOT_MAX_SIZE, rest);
+			       ((u8 *)data) + i * AV7110_BOOT_MAX_SIZE, rest);
 		else
 			mwdebi(av7110, DEBISWAB, bootblock,
-			       ((char*)data) + i * AV7110_BOOT_MAX_SIZE - 4, rest + 4);
+			       ((u8 *)data) + i * AV7110_BOOT_MAX_SIZE - 4, rest + 4);
 
 		iwdebi(av7110, DEBISWAB, AV7110_BOOT_BASE, swab32(base), 4);
 		iwdebi(av7110, DEBINOSWAP, AV7110_BOOT_SIZE, rest, 2);
@@ -751,7 +751,7 @@ static int FlushText(struct av7110 *av7110)
 	return 0;
 }
 
-static int WriteText(struct av7110 *av7110, u8 win, u16 x, u16 y, u8* buf)
+static int WriteText(struct av7110 *av7110, u8 win, u16 x, u16 y, char *buf)
 {
 	int i, ret;
 	unsigned long start;
diff --git a/drivers/media/dvb/ttpci/av7110_hw.h b/drivers/media/dvb/ttpci/av7110_hw.h
index 673d9b3f064c..74d940f75da6 100644
--- a/drivers/media/dvb/ttpci/av7110_hw.h
+++ b/drivers/media/dvb/ttpci/av7110_hw.h
@@ -393,7 +393,7 @@ static inline void iwdebi(struct av7110 *av7110, u32 config, int addr, u32 val,
 }
 
 /* buffer writes */
-static inline void mwdebi(struct av7110 *av7110, u32 config, int addr, char *val, int count)
+static inline void mwdebi(struct av7110 *av7110, u32 config, int addr, u8 *val, int count)
 {
 	memcpy(av7110->debi_virt, val, count);
 	av7110_debiwrite(av7110, config, addr, 0, count);
diff --git a/drivers/media/dvb/ttpci/av7110_v4l.c b/drivers/media/dvb/ttpci/av7110_v4l.c
index fcd9994058d0..87afaebc0703 100644
--- a/drivers/media/dvb/ttpci/av7110_v4l.c
+++ b/drivers/media/dvb/ttpci/av7110_v4l.c
@@ -333,7 +333,7 @@ static int av7110_ioctl(struct saa7146_fh *fh, unsigned int cmd, void *arg)
 			return -EINVAL;
 
 		memset(t, 0, sizeof(*t));
-		strcpy(t->name, "Television");
+		strcpy((char *)t->name, "Television");
 
 		t->type = V4L2_TUNER_ANALOG_TV;
 		t->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO |
diff --git a/include/media/saa7146.h b/include/media/saa7146.h
index d3f4f5a38214..67703249b245 100644
--- a/include/media/saa7146.h
+++ b/include/media/saa7146.h
@@ -114,7 +114,7 @@ struct saa7146_dev
 	struct mutex			lock;
 
 	unsigned char			__iomem *mem;		/* pointer to mapped IO memory */
-	int				revision;	/* chip revision; needed for bug-workarounds*/
+	u32				revision;	/* chip revision; needed for bug-workarounds*/
 
 	/* pci-device & irq stuff*/
 	char				name[32];
@@ -157,8 +157,8 @@ struct saa7146_format* format_by_fourcc(struct saa7146_dev *dev, int fourcc);
 int saa7146_pgtable_alloc(struct pci_dev *pci, struct saa7146_pgtable *pt);
 void saa7146_pgtable_free(struct pci_dev *pci, struct saa7146_pgtable *pt);
 int saa7146_pgtable_build_single(struct pci_dev *pci, struct saa7146_pgtable *pt, struct scatterlist *list, int length );
-char *saa7146_vmalloc_build_pgtable(struct pci_dev *pci, long length, struct saa7146_pgtable *pt);
-void saa7146_vfree_destroy_pgtable(struct pci_dev *pci, char *mem, struct saa7146_pgtable *pt);
+void *saa7146_vmalloc_build_pgtable(struct pci_dev *pci, long length, struct saa7146_pgtable *pt);
+void saa7146_vfree_destroy_pgtable(struct pci_dev *pci, void *mem, struct saa7146_pgtable *pt);
 void saa7146_setgpio(struct saa7146_dev *dev, int port, u32 data);
 int saa7146_wait_for_debi_done(struct saa7146_dev *dev, int nobusyloop);