X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Farch%2Fxtensa%2Fplatforms%2Fiss%2Fconsole.c;fp=kernel%2Farch%2Fxtensa%2Fplatforms%2Fiss%2Fconsole.c;h=92d785fefb6d0634db9ef891f0ffbedbe2421a40;hb=52f993b8e89487ec9ee15a7fb4979e0f09a45b27;hp=70cb408bc20dc8fc593fbbcebf68d3a06cb967b0;hpb=c189ccac5702322ed843fe17057035b7222a59b6;p=kvmfornfv.git

diff --git a/kernel/arch/xtensa/platforms/iss/console.c b/kernel/arch/xtensa/platforms/iss/console.c
index 70cb408bc..92d785fef 100644
--- a/kernel/arch/xtensa/platforms/iss/console.c
+++ b/kernel/arch/xtensa/platforms/iss/console.c
@@ -100,21 +100,23 @@ static void rs_poll(unsigned long priv)
 {
 	struct tty_port *port = (struct tty_port *)priv;
 	int i = 0;
+	int rd = 1;
 	unsigned char c;
 
 	spin_lock(&timer_lock);
 
 	while (simc_poll(0)) {
-		simc_read(0, &c, 1);
+		rd = simc_read(0, &c, 1);
+		if (rd <= 0)
+			break;
 		tty_insert_flip_char(port, c, TTY_NORMAL);
 		i++;
 	}
 
 	if (i)
 		tty_flip_buffer_push(port);
-
-
-	mod_timer(&serial_timer, jiffies + SERIAL_TIMER_VALUE);
+	if (rd)
+		mod_timer(&serial_timer, jiffies + SERIAL_TIMER_VALUE);
 	spin_unlock(&timer_lock);
 }