From 2adc7907bac2c72535894732c4b41f9210f9e577 Mon Sep 17 00:00:00 2001 From: Alexander Gordeev Date: Mon, 16 Dec 2013 09:34:56 +0100 Subject: [PATCH] PCI/MSI: Return msix_capability_init() failure if populate_msi_sysfs() fails If populate_msi_sysfs() function failed msix_capability_init() must return the error code, but it returns the success instead. This update fixes the described misbehaviour. Signed-off-by: Alexander Gordeev Signed-off-by: Bjorn Helgaas Reviewed-by: Tejun Heo --- drivers/pci/msi.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index f88fa1277802..a581381e02f2 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -749,7 +749,7 @@ static int msix_capability_init(struct pci_dev *dev, ret = arch_setup_msi_irqs(dev, nvec, PCI_CAP_ID_MSIX); if (ret) - goto error; + goto out_avail; /* * Some devices require MSI-X to be enabled before we can touch the @@ -762,10 +762,8 @@ static int msix_capability_init(struct pci_dev *dev, msix_program_entries(dev, entries); ret = populate_msi_sysfs(dev); - if (ret) { - ret = 0; - goto error; - } + if (ret) + goto out_free; /* Set MSI-X enabled bits and unmask the function */ pci_intx_for_msi(dev, 0); @@ -776,7 +774,7 @@ static int msix_capability_init(struct pci_dev *dev, return 0; -error: +out_avail: if (ret < 0) { /* * If we had some success, report the number of irqs @@ -793,6 +791,7 @@ error: ret = avail; } +out_free: free_msi_irqs(dev); return ret; -- 2.20.1