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authorArnd Bergmann <arnd@arndb.de>2014-01-02 13:07:37 +0100
committerJesper Nilsson <jespern@axis.com>2014-01-09 10:50:50 +0100
commit329fddd7b60cf6aed53cdb6fdc8e64117b8e8bc6 (patch)
tree7e4e54cfa9defbb96c73bad6ec49c0d391a6ba43 /arch/cris/arch-v10
parent64d8ad933d06f3d5070db8eb855cdfc0a80b595d (diff)
downloadlinux-329fddd7b60cf6aed53cdb6fdc8e64117b8e8bc6.tar.gz
cris: sync_serial: remove interruptible_sleep_on
sleep_on and its variants are racy and going away. This replaces the two uses in the cris sync_serial drivers with the equivalent but race-free wait_event_interruptible. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Mikael Starvik <starvik@axis.com> Cc: linux-cris-kernel@axis.com Signed-off-by: Jesper Nilsson <jespern@axis.com>
Diffstat (limited to 'arch/cris/arch-v10')
-rw-r--r--arch/cris/arch-v10/drivers/sync_serial.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/cris/arch-v10/drivers/sync_serial.c b/arch/cris/arch-v10/drivers/sync_serial.c
index 04d39e0ca55d..29eb02ab3f25 100644
--- a/arch/cris/arch-v10/drivers/sync_serial.c
+++ b/arch/cris/arch-v10/drivers/sync_serial.c
@@ -22,6 +22,7 @@
#include <linux/init.h>
#include <linux/mutex.h>
#include <linux/timer.h>
+#include <linux/wait.h>
#include <asm/irq.h>
#include <asm/dma.h>
#include <asm/io.h>
@@ -1136,7 +1137,8 @@ static ssize_t sync_serial_read(struct file *file, char *buf,
if (file->f_flags & O_NONBLOCK)
return -EAGAIN;
- interruptible_sleep_on(&port->in_wait_q);
+ wait_event_interruptible(port->in_wait_q,
+ !(start == end && !port->full));
if (signal_pending(current))
return -EINTR;