[media] common: tunners: use %*ph to dump small buffers

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/common/tuners/tuner-xc2028.c b/drivers/media/common/tuners/tuner-xc2028.c
index 49e63ec..7bcb6b0 100644
--- a/drivers/media/common/tuners/tuner-xc2028.c
+++ b/drivers/media/common/tuners/tuner-xc2028.c
@@ -1126,8 +1126,7 @@
 
 	priv->frequency = freq;
 
-	tuner_dbg("divisor= %02x %02x %02x %02x (freq=%d.%03d)\n",
-	       buf[0], buf[1], buf[2], buf[3],
+	tuner_dbg("divisor= %*ph (freq=%d.%03d)\n", 4, buf,
 	       freq / 1000000, (freq % 1000000) / 1000);
 
 	rc = 0;
diff --git a/drivers/media/common/tuners/xc4000.c b/drivers/media/common/tuners/xc4000.c
index 6839711..4937712 100644
--- a/drivers/media/common/tuners/xc4000.c
+++ b/drivers/media/common/tuners/xc4000.c
@@ -263,8 +263,7 @@
 			printk(KERN_ERR "xc4000: I2C write failed (len=%i)\n",
 			       len);
 			if (len == 4) {
-				printk(KERN_ERR "bytes %02x %02x %02x %02x\n", buf[0],
-				       buf[1], buf[2], buf[3]);
+				printk(KERN_ERR "bytes %*ph\n", 4, buf);
 			}
 			return -EREMOTEIO;
 		}