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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> | 2016-03-03 15:06:48 -0800 |
| commit | a255d55190d702c217eef87de067b14c25a5c2d2 (patch) | |
| tree | ce4a342875c936b330cb2f67f610f44a21ea0edf /lib | |
| parent | e7f460fef9a6d391abfca3b9819de348e449461e (diff) | |
| download | lwn-a255d55190d702c217eef87de067b14c25a5c2d2.tar.gz lwn-a255d55190d702c217eef87de067b14c25a5c2d2.zip | |
devres: fix a for loop bounds check
commit 1f35d04a02a652f14566f875aef3a6f2af4cb77b upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib')
| -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 823533138fa0..20afaf181b27 100644 --- a/lib/devres.c +++ b/lib/devres.c @@ -423,7 +423,7 @@ 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; |