X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=drv%2Fser.c;h=ec3d87b1e9dd9f7090e4dee8b075082f0953ac70;hb=357026e01c5b8305bfca0ab67193f25fbd49e5ee;hp=1ec4927c753cd2ca0dff8c502b7a7b0751c0188a;hpb=96f0ef786b54356c56cc3d4e4f0838df2505cfcc;p=bertos.git

diff --git a/drv/ser.c b/drv/ser.c
index 1ec4927c..ec3d87b1 100755
--- a/drv/ser.c
+++ b/drv/ser.c
@@ -28,6 +28,9 @@
 
 /*
  * $Log$
+ * Revision 1.5  2004/06/06 16:41:44  bernie
+ * ser_putchar(): Use fifo_push_locked() to fix potential race on 8bit processors.
+ *
  * Revision 1.4  2004/06/03 11:27:09  bernie
  * Add dual-license information.
  *
@@ -96,7 +99,7 @@ int ser_putchar(int c, struct Serial *port)
 		while (fifo_isfull_locked(&port->txfifo));
 	}
 
-	fifo_push(&port->txfifo, (unsigned char)c);
+	fifo_push_locked(&port->txfifo, (unsigned char)c);
 
 	/* (re)trigger tx interrupt */
 	port->hw->table->enabletxirq(port->hw);