[PATCH net-next] wwan: mhi: Fix missing spin_lock_init() in mhi_mbim_probe()

[PATCH net-next] wwan: mhi: Fix missing spin_lock_init() in mhi_mbim_probe()

[Wei Yongjun]

The driver allocates the spinlock but not initialize it.
Use spin_lock_init() on it to initialize it correctly.

Fixes: aa730a9905b7 ("net: wwan: Add MHI MBIM network driver")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
---
 drivers/net/wwan/mhi_wwan_mbim.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wwan/mhi_wwan_mbim.c b/drivers/net/wwan/mhi_wwan_mbim.c
index f37232fb29c0..377529bbf124 100644
--- a/drivers/net/wwan/mhi_wwan_mbim.c
+++ b/drivers/net/wwan/mhi_wwan_mbim.c
@@ -601,6 +601,7 @@ static int mhi_mbim_probe(struct mhi_device *mhi_dev, const struct mhi_device_id
 	if (!mbim)
 		return -ENOMEM;
 
+	spin_lock_init(&mbim->tx_lock);
 	dev_set_drvdata(&mhi_dev->dev, mbim);
 	mbim->mdev = mhi_dev;
 	mbim->mru = mhi_dev->mhi_cntrl->mru ? mhi_dev->mhi_cntrl->mru : MHI_DEFAULT_MRU;

Re: [PATCH net-next] wwan: mhi: Fix missing spin_lock_init() in mhi_mbim_probe()

[Sergey Ryazanov]

On Sun, Aug 8, 2021 at 9:21 AM Wei Yongjun <weiyongjun1@huawei.com> wrote:
>
> The driver allocates the spinlock but not initialize it.
> Use spin_lock_init() on it to initialize it correctly.
>
> Fixes: aa730a9905b7 ("net: wwan: Add MHI MBIM network driver")
> Reported-by: Hulk Robot <hulkci@huawei.com>
> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>

Reviewed-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>

Re: [PATCH net-next] wwan: mhi: Fix missing spin_lock_init() in mhi_mbim_probe()

[patchwork-bot+netdevbpf]

Hello:

This patch was applied to netdev/net-next.git (refs/heads/master):

On Sun, 8 Aug 2021 06:33:44 +0000 you wrote:
> The driver allocates the spinlock but not initialize it.
> Use spin_lock_init() on it to initialize it correctly.
> 
> Fixes: aa730a9905b7 ("net: wwan: Add MHI MBIM network driver")
> Reported-by: Hulk Robot <hulkci@huawei.com>
> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
> 
> [...]

Here is the summary with links:
  - [net-next] wwan: mhi: Fix missing spin_lock_init() in mhi_mbim_probe()
    https://git.kernel.org/netdev/net-next/c/94c0a6fbd5cf

You are awesome, thank you!
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