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rapidio: add check for rio_add_net() in rio_scan_alloc_net()

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commit e842f9a1ed upstream.

The return value of rio_add_net() should be checked.  If it fails,
put_device() should be called to free the memory and give up the reference
initialized in rio_add_net().

Link: https://lkml.kernel.org/r/20250227041131.3680761-1-haoxiang_li2024@163.com
Fixes: e6b585ca6e ("rapidio: move net allocation into core code")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Haoxiang Li <haoxiang_li2024@163.com>
Cc: Alexandre Bounine <alex.bou9@gmail.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Dan Carpenter <dan.carpenter@linaro.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Haoxiang Li
2025-02-27 12:11:31 +08:00
committed by Greg Kroah-Hartman
parent 848526581f
commit c332f3e2df
1 changed files with 4 additions and 1 deletions
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drivers/rapidio/rio-scan.c
+4 -1
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@@ -871,7 +871,10 @@ static struct rio_net *rio_scan_alloc_net(struct rio_mport *mport,
dev_set_name(&net->dev, "rnet_%d", net->id);
net->dev.parent = &mport->dev;
net->dev.release = rio_scan_release_dev;
rio_add_net(net);
if (rio_add_net(net)) {
put_device(&net->dev);
net = NULL;
}
}
return net;