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Diffstat (limited to 'drivers/char/esp.c')
-rw-r--r--drivers/char/esp.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/char/esp.c b/drivers/char/esp.c
index e469f641c728..dd5dc8fa490d 100644
--- a/drivers/char/esp.c
+++ b/drivers/char/esp.c
@@ -160,7 +160,6 @@ static void rs_wait_until_sent(struct tty_struct *, int);
* memory if large numbers of serial ports are open.
*/
static unsigned char *tmp_buf;
-static DECLARE_MUTEX(tmp_buf_sem);
static inline int serial_paranoia_check(struct esp_struct *info,
char *name, const char *routine)