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| author |   Sebastian Ott <sebott@linux.ibm.com> | 2018-07-31 09:59:09 -0400 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2019-02-07 11:57:04 +0100 |
| commit | e8e25a7718cf64701ddf7f7b2e31c79815b613f1 (patch) | |
| tree | 4e1926129005ff10ced108712525611fbd1fc12e /arch/s390/pci | |
| parent | s390/mmap: take stack_guard_gap into account for mmap_base (diff) | |
| download | linux-dev-e8e25a7718cf64701ddf7f7b2e31c79815b613f1.tar.xz linux-dev-e8e25a7718cf64701ddf7f7b2e31c79815b613f1.zip | |
s390/pci: improve bar check
Improve the bar check in pci_iomap_range to cover functions
for which we recognize more bars than what we can access due
to AR restrictions.
Signed-off-by: Sebastian Ott <sebott@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/pci')
| -rw-r--r-- | arch/s390/pci/pci.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c index a966d7bfac57..353161c2e309 100644 --- a/arch/s390/pci/pci.c +++ b/arch/s390/pci/pci.c @@ -285,7 +285,7 @@ void __iomem *pci_iomap_range(struct pci_dev *pdev, struct zpci_dev *zdev = to_zpci(pdev); int idx; - if (!pci_resource_len(pdev, bar)) + if (!pci_resource_len(pdev, bar) || bar >= PCI_BAR_COUNT) return NULL; idx = zdev->bars[bar].map_idx; |