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path: root/drivers/usb/serial/generic.c
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Diffstat (limited to 'drivers/usb/serial/generic.c')
-rw-r--r--drivers/usb/serial/generic.c12
1 files changed, 2 insertions, 10 deletions
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index 2b01ec8651c2..b63ce023f96f 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -173,16 +173,8 @@ retry:
173 clear_bit_unlock(USB_SERIAL_WRITE_BUSY, &port->flags); 173 clear_bit_unlock(USB_SERIAL_WRITE_BUSY, &port->flags);
174 return result; 174 return result;
175 } 175 }
176 /*
177 * Try sending off another urb, unless called from completion handler
178 * (in which case there will be no free urb or no data).
179 */
180 if (mem_flags != GFP_ATOMIC)
181 goto retry;
182 176
183 clear_bit_unlock(USB_SERIAL_WRITE_BUSY, &port->flags); 177 goto retry; /* try sending off another urb */
184
185 return 0;
186} 178}
187EXPORT_SYMBOL_GPL(usb_serial_generic_write_start); 179EXPORT_SYMBOL_GPL(usb_serial_generic_write_start);
188 180
@@ -208,7 +200,7 @@ int usb_serial_generic_write(struct tty_struct *tty,
208 return 0; 200 return 0;
209 201
210 count = kfifo_in_locked(&port->write_fifo, buf, count, &port->lock); 202 count = kfifo_in_locked(&port->write_fifo, buf, count, &port->lock);
211 result = usb_serial_generic_write_start(port, GFP_KERNEL); 203 result = usb_serial_generic_write_start(port, GFP_ATOMIC);
212 if (result) 204 if (result)
213 return result; 205 return result;
214 206