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Subject[PATCH 6/6] media/cobalt: use pci_irq_allocate_vectors
Date
Simply the interrupt setup by using the new PCI layer helpers.

Despite using pci_enable_msi_range, this driver was only requesting a
single MSI vector anyway.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
drivers/media/pci/cobalt/cobalt-driver.c | 8 ++------
drivers/media/pci/cobalt/cobalt-driver.h | 2 --
2 files changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/media/pci/cobalt/cobalt-driver.c b/drivers/media/pci/cobalt/cobalt-driver.c
index 476f7f0..5a0a9e4 100644
--- a/drivers/media/pci/cobalt/cobalt-driver.c
+++ b/drivers/media/pci/cobalt/cobalt-driver.c
@@ -307,9 +307,7 @@ static void cobalt_pci_iounmap(struct cobalt *cobalt, struct pci_dev *pci_dev)
static void cobalt_free_msi(struct cobalt *cobalt, struct pci_dev *pci_dev)
{
free_irq(pci_dev->irq, (void *)cobalt);
-
- if (cobalt->msi_enabled)
- pci_disable_msi(pci_dev);
+ pci_free_irq_vectors(pci_dev);
}

static int cobalt_setup_pci(struct cobalt *cobalt, struct pci_dev *pci_dev,
@@ -386,14 +384,12 @@ static int cobalt_setup_pci(struct cobalt *cobalt, struct pci_dev *pci_dev,
from being generated. */
cobalt_set_interrupt(cobalt, false);

- if (pci_enable_msi_range(pci_dev, 1, 1) < 1) {
+ if (pci_alloc_irq_vectors(pci_dev, 1, 1, PCI_IRQ_MSI) < 1) {
cobalt_err("Could not enable MSI\n");
- cobalt->msi_enabled = false;
ret = -EIO;
goto err_release;
}
msi_config_show(cobalt, pci_dev);
- cobalt->msi_enabled = true;

/* Register IRQ */
if (request_irq(pci_dev->irq, cobalt_irq_handler, IRQF_SHARED,
diff --git a/drivers/media/pci/cobalt/cobalt-driver.h b/drivers/media/pci/cobalt/cobalt-driver.h
index ed00dc9..00f773e 100644
--- a/drivers/media/pci/cobalt/cobalt-driver.h
+++ b/drivers/media/pci/cobalt/cobalt-driver.h
@@ -287,8 +287,6 @@ struct cobalt {
u32 irq_none;
u32 irq_full_fifo;

- bool msi_enabled;
-
/* omnitek dma */
int dma_channels;
int first_fifo_channel;
--
2.1.4
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