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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2015-09-21 19:21:51 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-10-05 04:49:54 +0100 |
| commit | 1f35d04a02a652f14566f875aef3a6f2af4cb77b (patch) | |
| tree | d4de9f8e5f4aa03b14f4a02905126673b8279f98 /lib/devres.c | |
| parent | a785ce9c90bc7d73b5cae4388641b310948509cb (diff) | |
| download | lwn-1f35d04a02a652f14566f875aef3a6f2af4cb77b.tar.gz lwn-1f35d04a02a652f14566f875aef3a6f2af4cb77b.zip | |
devres: fix a for loop bounds check
The iomap[] array has PCIM_IOMAP_MAX (6) elements and not
DEVICE_COUNT_RESOURCE (16). This bug was found using a static checker.
It may be that the "if (!(mask & (1 << i)))" check means we never
actually go past the end of the array in real life.
Fixes: ec04b075843d ('iomap: implement pcim_iounmap_regions()')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/devres.c')
| -rw-r--r-- | lib/devres.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/devres.c b/lib/devres.c index f13a2468ff39..8c85672639d3 100644 --- a/lib/devres.c +++ b/lib/devres.c @@ -418,7 +418,7 @@ void pcim_iounmap_regions(struct pci_dev *pdev, int mask) if (!iomap) return; - for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { + for (i = 0; i < PCIM_IOMAP_MAX; i++) { if (!(mask & (1 << i))) continue; |