summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2018-02-10 14:08:26 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2018-02-10 14:08:26 -0800
commitd48fcbd864a008802a90c58a9ceddd9436d11a49 (patch)
tree106829082981ab448c13094a58b5fb72d9d17da5
parent9454473c9dccb7b9d25e5baf915a082bfd490b33 (diff)
parentc591c2e36ccc9a08f265841d2fd68e35327ab3c4 (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.c5
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