[Linux-kernel-mentees] [PATCH v2 7/8] PCI/AER: Convert PCIBIOS_* errors to generic -E* errors

refactormyself at gmail.com refactormyself at gmail.com
Mon Jun 15 07:32:24 UTC 2020

From: Bolarinwa Olayemi Saheed <refactormyself at gmail.com>

pci_disable_pcie_error_reporting() returns PCIBIOS_ error code which were
passed down the call heirarchy from PCIe capability accessors.

PCIBIOS_ error codes have positive values. Passing on these values is
inconsistent with functions which return only a negative value on failure.

Before passing on the return value of PCIe capability accessors, call
pcibios_err_to_errno() to convert any positive PCIBIOS_ error codes to
negative error values.

Suggested-by: Bjorn Helgaas <bjorn at helgaas.com>
Signed-off-by: Bolarinwa Olayemi Saheed <refactormyself at gmail.com>
 drivers/pci/pcie/aer.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/pcie/aer.c b/drivers/pci/pcie/aer.c
index 95d480a52078..53e2ecb64c72 100644
--- a/drivers/pci/pcie/aer.c
+++ b/drivers/pci/pcie/aer.c
@@ -365,11 +365,15 @@ EXPORT_SYMBOL_GPL(pci_enable_pcie_error_reporting);
 int pci_disable_pcie_error_reporting(struct pci_dev *dev)
+	int rc;
 	if (pcie_aer_get_firmware_first(dev))
 		return -EIO;
-	return pcie_capability_clear_word(dev, PCI_EXP_DEVCTL,
+	rc = pcie_capability_clear_word(dev, PCI_EXP_DEVCTL,
+	return pcibios_err_to_errno(rc);

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