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authorHidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>2009-06-23 04:39:27 -0400
committerJesse Barnes <jbarnes@virtuousgeek.org>2009-06-29 15:16:19 -0400
commit7ba1930db02fc3118165338ef4e562869f575583 (patch)
tree6d889549aa2e15c6762c7cfc87764adfc3d6af4b /drivers
parent2c21fd4b333e4c780a46edcd6d1e85bfc6cdf371 (diff)
PCI MSI: Unmask MSI if setup failed
The initial state of mask register of MSI is unmasked. We set it masked before calling arch_setup_msi_irqs(). If arch_setup_msi_irq() fails, it is better to restore the state of the mask register. Reviewed-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/pci/msi.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index a088fc6f5838..9ab4fe8f20af 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -383,6 +383,7 @@ static int msi_capability_init(struct pci_dev *dev, int nvec)
383 /* Configure MSI capability structure */ 383 /* Configure MSI capability structure */
384 ret = arch_setup_msi_irqs(dev, nvec, PCI_CAP_ID_MSI); 384 ret = arch_setup_msi_irqs(dev, nvec, PCI_CAP_ID_MSI);
385 if (ret) { 385 if (ret) {
386 msi_mask_irq(entry, mask, ~mask);
386 msi_free_irqs(dev); 387 msi_free_irqs(dev);
387 return ret; 388 return ret;
388 } 389 }