[PATCH v3 3/4] net/axgbe: destroy mutexes on device close

[Stephen Hemminger <stephen@networkplumber.org>]

Four pthread mutexes (xpcs_mutex, i2c_mutex, an_mutex, phy_mutex)
are initialized in eth_axgbe_dev_init() but never destroyed in
axgbe_dev_close(). This leaks kernel resources on every device
close/reopen cycle.

Add pthread_mutex_destroy() calls to the close path.

Fixes: 572890ef6625 ("net/axgbe: add structs for MAC init and reset")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/net/axgbe/axgbe_ethdev.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/axgbe/axgbe_ethdev.c b/drivers/net/axgbe/axgbe_ethdev.c
index 415fc6d739..a4b5e9425f 100644
--- a/drivers/net/axgbe/axgbe_ethdev.c
+++ b/drivers/net/axgbe/axgbe_ethdev.c
@@ -2481,6 +2481,11 @@ axgbe_dev_close(struct rte_eth_dev *eth_dev)
 	/* Disable all interrupts in the hardware */
 	XP_IOWRITE(pdata, XP_INT_EN, 0x0);
 
+	pthread_mutex_destroy(&pdata->xpcs_mutex);
+	pthread_mutex_destroy(&pdata->i2c_mutex);
+	pthread_mutex_destroy(&pdata->an_mutex);
+	pthread_mutex_destroy(&pdata->phy_mutex);
+
 	return 0;
 }
 
-- 
2.53.0