@@ -732,15 +732,18 @@ u16 pci_find_vsec_capability(struct pci_dev *dev, u16 vendor, int cap)
{
u16 vsec = 0;
u32 header;
+ int ret;
if (vendor != dev->vendor)
return 0;
while ((vsec = pci_find_next_ext_capability(dev, vsec,
PCI_EXT_CAP_ID_VNDR))) {
- if (pci_read_config_dword(dev, vsec + PCI_VNDR_HEADER,
- &header) == PCIBIOS_SUCCESSFUL &&
- PCI_VNDR_HEADER_ID(header) == cap)
+ ret = pci_read_config_dword(dev, vsec + PCI_VNDR_HEADER, &header);
+ if (ret != PCIBIOS_SUCCESSFUL)
+ continue;
+
+ if (PCI_VNDR_HEADER_ID(header) == cap)
return vsec;
}
@@ -1652,15 +1652,15 @@ static void pci_set_removable(struct pci_dev *dev)
static bool pci_ext_cfg_is_aliased(struct pci_dev *dev)
{
#ifdef CONFIG_PCI_QUIRKS
- int pos;
+ int pos, ret;
u32 header, tmp;
pci_read_config_dword(dev, PCI_VENDOR_ID, &header);
for (pos = PCI_CFG_SPACE_SIZE;
pos < PCI_CFG_SPACE_EXP_SIZE; pos += PCI_CFG_SPACE_SIZE) {
- if (pci_read_config_dword(dev, pos, &tmp) != PCIBIOS_SUCCESSFUL
- || header != tmp)
+ ret = pci_read_config_dword(dev, pos, &tmp);
+ if ((ret != PCIBIOS_SUCCESSFUL) || (header != tmp))
return false;
}
@@ -5381,7 +5381,7 @@ int pci_dev_specific_disable_acs_redir(struct pci_dev *dev)
*/
static void quirk_intel_qat_vf_cap(struct pci_dev *pdev)
{
- int pos, i = 0;
+ int pos, i = 0, ret;
u8 next_cap;
u16 reg16, *cap;
struct pci_cap_saved_state *state;
@@ -5427,8 +5427,8 @@ static void quirk_intel_qat_vf_cap(struct pci_dev *pdev)
pdev->pcie_mpss = reg16 & PCI_EXP_DEVCAP_PAYLOAD;
pdev->cfg_size = PCI_CFG_SPACE_EXP_SIZE;
- if (pci_read_config_dword(pdev, PCI_CFG_SPACE_SIZE, &status) !=
- PCIBIOS_SUCCESSFUL || (status == 0xffffffff))
+ ret = pci_read_config_dword(pdev, PCI_CFG_SPACE_SIZE, &status);
+ if ((ret != PCIBIOS_SUCCESSFUL) || (status == 0xffffffff))
pdev->cfg_size = PCI_CFG_SPACE_SIZE;
if (pci_find_saved_cap(pdev, PCI_CAP_ID_EXP))
Placing PCI error code check inside if condition usually results in need to split lines. Combined with additional conditions the if condition becomes messy. Convert to the usual error handling pattern with an additional variable to improve code readability. In addition, reverse the logic in pci_find_vsec_capability() to get rid of &&. No functional changes intended. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> --- drivers/pci/pci.c | 9 ++++++--- drivers/pci/probe.c | 6 +++--- drivers/pci/quirks.c | 6 +++--- 3 files changed, 12 insertions(+), 9 deletions(-)