usb: cdc-wdm: Fix race between disconnect and debug messages

dev_dbg() and dev_err() cannot be used to report failures
that may have been caused by a device's removal

Signed-off-by: Oliver Neukum <neukum@b1-systems.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 0 insertions, 5 deletions

diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c
index 940b17af162c..72e2eb030459 100644
--- a/drivers/usb/class/cdc-wdm.c
+++ b/drivers/usb/class/cdc-wdm.c
@@ -435,11 +435,8 @@ retry:
                 spin_lock_irq(&desc->iuspin);
 
                 if (desc->rerr) { /* read completed, error happened */
-                        int t = desc->rerr;
                         desc->rerr = 0;
                         spin_unlock_irq(&desc->iuspin);
-                        dev_err(&desc->intf->dev,
-                                "reading had resulted in %d\n", t);
                         rv = -EIO;
                         goto err;
                 }
@@ -477,8 +474,6 @@ retry:
 
 err:
         mutex_unlock(&desc->lock);
-        if (rv < 0 && rv != -EAGAIN)
-                dev_err(&desc->intf->dev, "wdm_read: exit error\n");
         return rv;
 }