[PATCH] PCI/msi: don't warn on irq_create_affinity_masks NULL return

[Christoph Hellwig <hch@lst.de>]

irq_create_affinity_masks can easily return NULL when there are not
enough "free" vectors available to spread, while the memory allocation
failure for the CPU masks not only is unlikely, but also relatively
harmless as the system will work just fine except for non-optimally
spread vectors.  Thus remove the warnings.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/pci/msi.c | 13 +++----------
 1 file changed, 3 insertions(+), 10 deletions(-)

diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index 253d92409bb3..2225afc1cbbb 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -538,12 +538,9 @@ msi_setup_entry(struct pci_dev *dev, int nvec, const struct irq_affinity *affd)
 	struct msi_desc *entry;
 	u16 control;
 
-	if (affd) {
+	if (affd)
 		masks = irq_create_affinity_masks(nvec, affd);
-		if (!masks)
-			dev_err(&dev->dev, "can't allocate MSI affinity masks for %d vectors\n",
-				nvec);
-	}
+
 
 	/* MSI Entry Initialization */
 	entry = alloc_msi_entry(&dev->dev, nvec, masks);
@@ -679,12 +676,8 @@ static int msix_setup_entries(struct pci_dev *dev, void __iomem *base,
 	struct msi_desc *entry;
 	int ret, i;
 
-	if (affd) {
+	if (affd)
 		masks = irq_create_affinity_masks(nvec, affd);
-		if (!masks)
-			dev_err(&dev->dev, "can't allocate MSI-X affinity masks for %d vectors\n",
-				nvec);
-	}
 
 	for (i = 0, curmsk = masks; i < nvec; i++) {
 		entry = alloc_msi_entry(&dev->dev, 1, curmsk);
-- 
2.11.0