EDAC/igen6: Convert PCIBIOS_* return codes to errnos

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From: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>

commit f8367a74aebf88dc8b58a0db6a6c90b4cb8fc9d3 upstream.

errcmd_enable_error_reporting() uses pci_{read,write}_config_word()
that return PCIBIOS_* codes. The return code is then returned all the
way into the probe function igen6_probe() that returns it as is. The
probe functions, however, should return normal errnos.

Convert PCIBIOS_* returns code using pcibios_err_to_errno() into normal
errno before returning it from errcmd_enable_error_reporting().

Fixes: 10590a9d4f23 ("EDAC/igen6: Add EDAC driver for Intel client SoCs using IBECC")
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>
Signed-off-by: Borislav Petkov (AMD) <bp@xxxxxxxxx>
Reviewed-by: Qiuxu Zhuo <qiuxu.zhuo@xxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Link: https://lore.kernel.org/r/20240527132236.13875-2-ilpo.jarvinen@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/edac/igen6_edac.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/edac/igen6_edac.c
+++ b/drivers/edac/igen6_edac.c
@@ -627,7 +627,7 @@ static int errcmd_enable_error_reporting
 
 	rc = pci_read_config_word(imc->pdev, ERRCMD_OFFSET, &errcmd);
 	if (rc)
-		return rc;
+		return pcibios_err_to_errno(rc);
 
 	if (enable)
 		errcmd |= ERRCMD_CE | ERRSTS_UE;
@@ -636,7 +636,7 @@ static int errcmd_enable_error_reporting
 
 	rc = pci_write_config_word(imc->pdev, ERRCMD_OFFSET, errcmd);
 	if (rc)
-		return rc;
+		return pcibios_err_to_errno(rc);
 
 	return 0;
 }


Patches currently in stable-queue which might be from ilpo.jarvinen@xxxxxxxxxxxxxxx are

queue-5.15/selftests-resctrl-fix-clang-build-failure-use-local_.patch
queue-5.15/edac-igen6-convert-pcibios_-return-codes-to-errnos.patch




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