[PATCH v4 12/29] ixgbe/base: fix error path to release lock
From: Beilei Xing <hidden>
Date: 2016-06-23 07:23:12
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
When there is an error getting the PHY token, the error path
fails to release the locks that it has taken. Release those
locks in that failure case.
Fixes: 86b8fb293fdf ("ixgbe/base: add sw-firmware sync for resource sharing on X550em_a")
Signed-off-by: Beilei Xing <redacted>
---
drivers/net/ixgbe/base/ixgbe_x550.c | 13 +++++++++----
1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ixgbe/base/ixgbe_x550.c b/drivers/net/ixgbe/base/ixgbe_x550.c
index f129e8c..daa8339 100644
--- a/drivers/net/ixgbe/base/ixgbe_x550.c
+++ b/drivers/net/ixgbe/base/ixgbe_x550.c@@ -3531,17 +3531,22 @@ static s32 ixgbe_acquire_swfw_sync_X550a(struct ixgbe_hw *hw, u32 mask) DEBUGFUNC("ixgbe_acquire_swfw_sync_X550a"); while (--retries) { + status = IXGBE_SUCCESS; if (hmask) status = ixgbe_acquire_swfw_sync_X540(hw, hmask); if (status) - break; + return status; if (!(mask & IXGBE_GSSR_TOKEN_SM)) - break; + return IXGBE_SUCCESS; + status = ixgbe_get_phy_token(hw); - if (status != IXGBE_ERR_TOKEN_RETRY) - break; + if (status == IXGBE_SUCCESS) + return IXGBE_SUCCESS; + if (hmask) ixgbe_release_swfw_sync_X540(hw, hmask); + if (status != IXGBE_ERR_TOKEN_RETRY) + return status; msec_delay(FW_PHY_TOKEN_DELAY); }
--
2.5.0