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Diffstat (limited to 'drivers/char/stallion.c')
-rw-r--r--drivers/char/stallion.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/char/stallion.c b/drivers/char/stallion.c
index 983244ab136..d17be10c5d2 100644
--- a/drivers/char/stallion.c
+++ b/drivers/char/stallion.c
@@ -875,6 +875,7 @@ static void stl_waituntilsent(struct tty_struct *tty, int timeout)
timeout = HZ;
tend = jiffies + timeout;
+ lock_kernel();
while (stl_datastate(portp)) {
if (signal_pending(current))
break;
@@ -882,6 +883,7 @@ static void stl_waituntilsent(struct tty_struct *tty, int timeout)
if (time_after_eq(jiffies, tend))
break;
}
+ unlock_kernel();
}
/*****************************************************************************/