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Diffstat (limited to 'drivers/staging/comedi/comedi_internal.h')
-rw-r--r--drivers/staging/comedi/comedi_internal.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/staging/comedi/comedi_internal.h b/drivers/staging/comedi/comedi_internal.h
index d5e03e5..fda1a7b 100644
--- a/drivers/staging/comedi/comedi_internal.h
+++ b/drivers/staging/comedi/comedi_internal.h
@@ -24,6 +24,7 @@ extern unsigned int comedi_default_buf_maxsize_kb;
/* drivers.c */
extern struct comedi_driver *comedi_drivers;
+extern struct mutex comedi_drivers_list_lock;
int insn_inval(struct comedi_device *, struct comedi_subdevice *,
struct comedi_insn *, unsigned int *);