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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-02-10 14:08:26 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-02-10 14:08:26 -0800 |
| commit | d48fcbd864a008802a90c58a9ceddd9436d11a49 (patch) | |
| tree | 106829082981ab448c13094a58b5fb72d9d17da5 | |
| parent | 9454473c9dccb7b9d25e5baf915a082bfd490b33 (diff) | |
| parent | c591c2e36ccc9a08f265841d2fd68e35327ab3c4 (diff) | |
Merge tag 'pci-v4.16-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fix from Bjorn Helgaas:
"Fix a POWER9/powernv INTx regression from the merge window (Alexey
Kardashevskiy)"
* tag 'pci-v4.16-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
powerpc/pci: Fix broken INTx configuration via OF
| -rw-r--r-- | arch/powerpc/kernel/pci-common.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index ae2ede4de6be..446c79611d56 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -362,7 +362,7 @@ struct pci_controller* pci_find_hose_for_OF_device(struct device_node* node) */ static int pci_read_irq_line(struct pci_dev *pci_dev) { - unsigned int virq = 0; + int virq; pr_debug("PCI: Try to map irq for %s...\n", pci_name(pci_dev)); @@ -370,7 +370,8 @@ static int pci_read_irq_line(struct pci_dev *pci_dev) memset(&oirq, 0xff, sizeof(oirq)); #endif /* Try to get a mapping from the device-tree */ - if (!of_irq_parse_and_map_pci(pci_dev, 0, 0)) { + virq = of_irq_parse_and_map_pci(pci_dev, 0, 0); + if (virq <= 0) { u8 line, pin; /* If that fails, lets fallback to what is in the config |