svn commit: r260911 - head/sys/dev/uart

[Warner Losh]

Author: imp
Date: Mon Jan 20 17:45:36 2014
New Revision: 260911
URL: http://svnweb.freebsd.org/changeset/base/260911

Log:
  Don't lock in the generic grab just to lock again in the specific grabs.
  (I committed the wrong version of uart_core.c, which still had this).
  
  Pointy hat: imp

Modified:
  head/sys/dev/uart/uart_core.c

Modified: head/sys/dev/uart/uart_core.c
==============================================================================
--- head/sys/dev/uart/uart_core.c	Mon Jan 20 15:51:02 2014	(r260910)
+++ head/sys/dev/uart/uart_core.c	Mon Jan 20 17:45:36 2014	(r260911)
@@ -629,18 +629,14 @@ void
 uart_grab(struct uart_devinfo *di)
 {
 
-	uart_lock(di->hwmtx);
 	if (di->sc)
 		UART_GRAB(di->sc);
-	uart_unlock(di->hwmtx);
 }
 
 void
 uart_ungrab(struct uart_devinfo *di)
 {
 
-	uart_lock(di->hwmtx);
 	if (di->sc)
 		UART_UNGRAB(di->sc);
-	uart_unlock(di->hwmtx);
 }