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| author |  Zhang Changzhong <zhangchangzhong@huawei.com>
| 2020-12-08 09:53:42 +0800 |
|---|---|---|
| committer |  David S. Miller <davem@davemloft.net>
| 2020-12-08 16:15:46 -0800 |
| commit | cc6596fc7295e9dcd78156ed42f9f8e1221f7530 (patch) | |
| tree | e7a274e333a77b28c752fd722e0da45d90127ad0 /net | |
| parent | net: tipc: prevent possible null deref of link (diff) | |
| download | linux-cc6596fc7295e9dcd78156ed42f9f8e1221f7530.tar.gz linux-cc6596fc7295e9dcd78156ed42f9f8e1221f7530.tar.bz2 linux-cc6596fc7295e9dcd78156ed42f9f8e1221f7530.zip | |
net: ll_temac: Fix potential NULL dereference in temac_probe()
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>
Diffstat (limited to 'net')
0 files changed, 0 insertions, 0 deletions