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| author | Zhang Changzhong <zhangchangzhong@huawei.com> | 2020-12-08 09:53:42 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-12-21 13:28:17 +0100 |
| commit | 912ac602fcaa68312072f29328b12b3a96738146 (patch) | |
| tree | f36d24bd91a0d250cd2ad499e710bb2536fe1811 /init | |
| parent | 00d09f335ed3495273285e1d4f28547e72595bda (diff) | |
| download | linux-stable-912ac602fcaa68312072f29328b12b3a96738146.tar.gz linux-stable-912ac602fcaa68312072f29328b12b3a96738146.tar.bz2 linux-stable-912ac602fcaa68312072f29328b12b3a96738146.zip | |
net: ll_temac: Fix potential NULL dereference in temac_probe()
[ Upstream commit cc6596fc7295e9dcd78156ed42f9f8e1221f7530 ]
platform_get_resource() may fail and in this case a NULL dereference
will occur.
Fix it to use devm_platform_ioremap_resource() instead of calling
platform_get_resource() and devm_ioremap().
This is detected by Coccinelle semantic patch.
@@
expression pdev, res, n, t, e, e1, e2;
@@
res = \(platform_get_resource\|platform_get_resource_byname\)(pdev, t, n);
+ if (!res)
+ return -EINVAL;
... when != res == NULL
e = devm_ioremap(e1, res->start, e2);
Fixes: 8425c41d1ef7 ("net: ll_temac: Extend support to non-device-tree platforms")
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Acked-by: Esben Haabendal <esben@geanix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'init')
0 files changed, 0 insertions, 0 deletions