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-rw-r--r--drivers/sbus/char/display7seg.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/sbus/char/display7seg.c b/drivers/sbus/char/display7seg.c
index 3279a1b6501d..d8f5c0ca236d 100644
--- a/drivers/sbus/char/display7seg.c
+++ b/drivers/sbus/char/display7seg.c
@@ -94,6 +94,7 @@ static int d7s_open(struct inode *inode, struct file *f)
{
if (D7S_MINOR != iminor(inode))
return -ENODEV;
+ cycle_kernel_lock();
atomic_inc(&d7s_users);
return 0;
}