[media] media/cobalt: use pci_irq_allocate_vectors

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>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

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 979634000597..d5c911c09e2b 100644
--- a/drivers/media/pci/cobalt/cobalt-driver.c
+++ b/drivers/media/pci/cobalt/cobalt-driver.c
@@ -308,9 +308,7 @@ 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,
@@ -387,14 +385,12 @@ 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 ed00dc9d9399..00f773ec359a 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;