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octeontx2-pf: Add missing mutex lock in otx2_get_pauseparam

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[ Upstream commit 9572c949385aa2ef10368287c439bcb7935137c8 ]

All the mailbox messages sent to AF needs to be guarded
by mutex lock. Add the missing lock in otx2_get_pauseparam
function.

Fixes: 75f36270990c ("octeontx2-pf: Support to enable/disable pause frames via ethtool")
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Subbaraya Sundeep 2023-11-29 10:53:42 +05:30 committed by Greg Kroah-Hartman
parent a08768110a
commit 6ddf005fd6
1 changed files with 5 additions and 1 deletions
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6
drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c
View File

@ -334,9 +334,12 @@ static void otx2_get_pauseparam(struct net_device *netdev,
if (is_otx2_lbkvf(pfvf->pdev))
return;
mutex_lock(&pfvf->mbox.lock);
req = otx2_mbox_alloc_msg_cgx_cfg_pause_frm(&pfvf->mbox);
if (!req)
if (!req) {
mutex_unlock(&pfvf->mbox.lock);
return;
}
if (!otx2_sync_mbox_msg(&pfvf->mbox)) {
rsp = (struct cgx_pause_frm_cfg *)
@ -344,6 +347,7 @@ static void otx2_get_pauseparam(struct net_device *netdev,
pause->rx_pause = rsp->rx_pause;
pause->tx_pause = rsp->tx_pause;
}
mutex_unlock(&pfvf->mbox.lock);
}
static int otx2_set_pauseparam(struct net_device *netdev,