4.19-stable review patch. If anyone has any objections, please let me know.
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From: Ilpo Järvinen ilpo.jarvinen@linux.intel.com
commit ebc4fc34eae8ddfbef49f2bdaced1bf4167ef80d upstream.
jmicron_pmos() and sdhci_pci_probe() use pci_{read,write}_config_byte() that return PCIBIOS_* codes. The return code is then returned as is by jmicron_probe() and sdhci_pci_probe(). Similarly, the return code is also returned as is from jmicron_resume(). Both probe and resume functions should return normal errnos.
Convert PCIBIOS_* returns code using pcibios_err_to_errno() into normal errno before returning them the fix these issues.
Fixes: 7582041ff3d4 ("mmc: sdhci-pci: fix simple_return.cocci warnings") Fixes: 45211e215984 ("sdhci: toggle JMicron PMOS setting") Cc: stable@vger.kernel.org Signed-off-by: Ilpo Järvinen ilpo.jarvinen@linux.intel.com Acked-by: Adrian Hunter adrian.hunter@intel.com Link: https://lore.kernel.org/r/20240527132443.14038-1-ilpo.jarvinen@linux.intel.c... Signed-off-by: Ulf Hansson ulf.hansson@linaro.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/mmc/host/sdhci-pci-core.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-)
--- a/drivers/mmc/host/sdhci-pci-core.c +++ b/drivers/mmc/host/sdhci-pci-core.c @@ -1103,7 +1103,7 @@ static int jmicron_pmos(struct sdhci_pci
ret = pci_read_config_byte(chip->pdev, 0xAE, &scratch); if (ret) - return ret; + goto fail;
/* * Turn PMOS on [bit 0], set over current detection to 2.4 V @@ -1114,7 +1114,10 @@ static int jmicron_pmos(struct sdhci_pci else scratch &= ~0x47;
- return pci_write_config_byte(chip->pdev, 0xAE, scratch); + ret = pci_write_config_byte(chip->pdev, 0xAE, scratch); + +fail: + return pcibios_err_to_errno(ret); }
static int jmicron_probe(struct sdhci_pci_chip *chip) @@ -1986,7 +1989,7 @@ static int sdhci_pci_probe(struct pci_de
ret = pci_read_config_byte(pdev, PCI_SLOT_INFO, &slots); if (ret) - return ret; + return pcibios_err_to_errno(ret);
slots = PCI_SLOT_INFO_SLOTS(slots) + 1; dev_dbg(&pdev->dev, "found %d slot(s)\n", slots); @@ -1997,7 +2000,7 @@ static int sdhci_pci_probe(struct pci_de
ret = pci_read_config_byte(pdev, PCI_SLOT_INFO, &first_bar); if (ret) - return ret; + return pcibios_err_to_errno(ret);
first_bar &= PCI_SLOT_INFO_FIRST_BAR_MASK;