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PCI/MSI: Unmap MSI-X region on error

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msix_capability_init() fails to unmap the MSI-X region if
msix_setup_interrupts() fails.

Add the missing iounmap() for that error path.

[ tglx: Massaged change log ]

Signed-off-by: Haoxiang Li <lihaoxiang@isrc.iscas.ac.cn>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20260125144452.2103812-1-lihaoxiang@isrc.iscas.ac.cn
This commit is contained in:
Haoxiang Li 2026-01-25 22:44:52 +08:00 committed by Thomas Gleixner
parent df439718af
commit 1a8d4c6ecb
1 changed files with 3 additions and 1 deletions
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4
drivers/pci/msi/msi.c
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@ -737,7 +737,7 @@ static int msix_capability_init(struct pci_dev *dev, struct msix_entry *entries,
ret = msix_setup_interrupts(dev, entries, nvec, affd);
if (ret)
goto out_disable;
goto out_unmap;
/* Disable INTX */
pci_intx_for_msi(dev, 0);
@ -758,6 +758,8 @@ static int msix_capability_init(struct pci_dev *dev, struct msix_entry *entries,
pcibios_free_irq(dev);
return 0;
out_unmap:
iounmap(dev->msix_base);
out_disable:
dev->msix_enabled = 0;
pci_msix_clear_and_set_ctrl(dev, PCI_MSIX_FLAGS_MASKALL | PCI_MSIX_FLAGS_ENABLE, 0);