[PATCH] USB serial: Converts port semaphore to mutexes.

[karo-tx-linux.git] / drivers / usb / serial / usb-serial.h

diff --git a/drivers/usb/serial/usb-serial.h b/drivers/usb/serial/usb-serial.h
index d7d27c3385b384ea090a033ebd6da14dc0512038..dc89d87104609524d6b3e07272153a6807459798 100644 (file)
--- a/drivers/usb/serial/usb-serial.h
+++ b/drivers/usb/serial/usb-serial.h
@@ -16,7 +16,7 @@
 
 #include <linux/config.h>
 #include <linux/kref.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
 
 #define SERIAL_TTY_MAJOR       188     /* Nice legal number now */
 #define SERIAL_TTY_MINORS      255     /* loads of devices :) */
@@ -31,7 +31,7 @@
  * @serial: pointer back to the struct usb_serial owner of this port.
  * @tty: pointer to the corresponding tty for this port.
  * @lock: spinlock to grab when updating portions of this structure.
- * @sem: semaphore used to synchronize serial_open() and serial_close()
+ * @mutex: mutex used to synchronize serial_open() and serial_close()
  *     access for this port.
  * @number: the number of the port (the minor number).
  * @interrupt_in_buffer: pointer to the interrupt in buffer for this port.
@@ -63,7 +63,7 @@ struct usb_serial_port {
        struct usb_serial *     serial;
        struct tty_struct *     tty;
        spinlock_t              lock;
-       struct semaphore        sem;
+       struct mutex            mutex;
        unsigned char           number;
 
        unsigned char *         interrupt_in_buffer;