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| author | Naveen Naidu <naveennaidu479@gmail.com> | 2021-11-18 17:03:17 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2021-11-18 22:40:06 +0300 |
| commit | 7e9768539eb32e0fb5eb09f033b33dbd8a15e16d (patch) | |
| tree | e0ba0e8e2eac0b7546c29d36b48ed4556f6fdd2d /drivers/pci/controller/pcie-mediatek.c | |
| parent | 814dccec67ef7319dcaf825da73e8d3bfcdc68f0 (diff) | |
| download | linux-7e9768539eb32e0fb5eb09f033b33dbd8a15e16d.tar.xz | |
PCI: mediatek: Drop error data fabrication when config read fails
If config pci_ops.read() methods return failure, the PCI_OP_READ() and
PCI_USER_READ_CONFIG() wrappers use PCI_SET_ERROR_RESPONSE() to set the
data value, so there's no need to set it in the pci_ops.read() methods
themselves.
Drop the unnecessary data value fabrication when pci_ops.read() fails.
Link: https://lore.kernel.org/r/666127469482f9ca177805ff52aeb7bccb26e4c9.1637243717.git.naveennaidu479@gmail.com
Signed-off-by: Naveen Naidu <naveennaidu479@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/controller/pcie-mediatek.c')
| -rw-r--r-- | drivers/pci/controller/pcie-mediatek.c | 11 |
1 files changed, 2 insertions, 9 deletions
diff --git a/drivers/pci/controller/pcie-mediatek.c b/drivers/pci/controller/pcie-mediatek.c index 2f3f974977a3..a19f8ec5d392 100644 --- a/drivers/pci/controller/pcie-mediatek.c +++ b/drivers/pci/controller/pcie-mediatek.c @@ -365,19 +365,12 @@ static int mtk_pcie_config_read(struct pci_bus *bus, unsigned int devfn, { struct mtk_pcie_port *port; u32 bn = bus->number; - int ret; port = mtk_pcie_find_port(bus, devfn); - if (!port) { - *val = ~0; + if (!port) return PCIBIOS_DEVICE_NOT_FOUND; - } - - ret = mtk_pcie_hw_rd_cfg(port, bn, devfn, where, size, val); - if (ret) - *val = ~0; - return ret; + return mtk_pcie_hw_rd_cfg(port, bn, devfn, where, size, val); } static int mtk_pcie_config_write(struct pci_bus *bus, unsigned int devfn, |