USB: CP2101 Reduce Error Logging

This patch lowers the logging priority of certain messages to prevent
users from flooding the log files.

Signed-off-by: Craig Shelley <craig@microtron.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 7 insertions, 12 deletions

diff --git a/drivers/usb/serial/cp2101.c b/drivers/usb/serial/cp2101.c
index 9b56e35aee4d..2f23d0643624 100644
--- a/drivers/usb/serial/cp2101.c
+++ b/drivers/usb/serial/cp2101.c
@@ -11,10 +11,6 @@
  * thanks to Karl Hiramoto karl@hiramoto.org. RTSCTS hardware flow
  * control thanks to Munir Nassar nassarmu@real-time.com
  *
- * Outstanding Issues:
- *  Buffers are not flushed when the port is opened.
- *  Multiple calls to write() may fail with "Resource temporarily unavailable"
- *
  */
 
 #include <linux/kernel.h>
@@ -225,7 +221,7 @@ static int cp2101_get_config(struct usb_serial_port *port, u8 request,
         kfree(buf);
 
         if (result != size) {
-                dev_err(&port->dev, "%s - Unable to send config request, "
+                dbg("%s - Unable to send config request, "
                                 "request=0x%x size=%d result=%d\n",
                                 __func__, request, size, result);
                 return -EPROTO;
@@ -276,7 +272,7 @@ static int cp2101_set_config(struct usb_serial_port *port, u8 request,
         kfree(buf);
 
         if ((size > 2 && result != size) || result < 0) {
-                dev_err(&port->dev, "%s - Unable to send request, "
+                dbg("%s - Unable to send request, "
                                 "request=0x%x size=%d result=%d\n",
                                 __func__, request, size, result);
                 return -EPROTO;
@@ -566,8 +562,7 @@ static void cp2101_set_termios(struct tty_struct *tty,
                                 baud);
                 if (cp2101_set_config_single(port, CP2101_BAUDRATE,
                                         ((BAUD_RATE_GEN_FREQ + baud/2) / baud))) {
-                        dev_err(&port->dev, "Baud rate requested not "
-                                        "supported by device\n");
+                        dbg("Baud rate requested not supported by device\n");
                         baud = tty_termios_baud_rate(old_termios);
                 }
         }
@@ -600,14 +595,14 @@ static void cp2101_set_termios(struct tty_struct *tty,
                         dbg("%s - data bits = 9", __func__);
                         break;*/
                 default:
-                        dev_err(&port->dev, "cp2101 driver does not "
+                        dbg("cp2101 driver does not "
                                         "support the number of bits requested,"
                                         " using 8 bit mode\n");
                                 bits |= BITS_DATA_8;
                                 break;
                 }
                 if (cp2101_set_config(port, CP2101_BITS, &bits, 2))
-                        dev_err(&port->dev, "Number of data bits requested "
+                        dbg("Number of data bits requested "
                                         "not supported by device\n");
         }
 
@@ -624,7 +619,7 @@ static void cp2101_set_termios(struct tty_struct *tty,
                         }
                 }
                 if (cp2101_set_config(port, CP2101_BITS, &bits, 2))
-                        dev_err(&port->dev, "Parity mode not supported "
+                        dbg("Parity mode not supported "
                                         "by device\n");
         }
 
@@ -639,7 +634,7 @@ static void cp2101_set_termios(struct tty_struct *tty,
                         dbg("%s - stop bits = 1", __func__);
                 }
                 if (cp2101_set_config(port, CP2101_BITS, &bits, 2))
-                        dev_err(&port->dev, "Number of stop bits requested "
+                        dbg("Number of stop bits requested "
                                         "not supported by device\n");
         }