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PCI: Remove assignment from "if" conditions 

The following Coccinelle semantic patch was used to find and correct cases
of assignments in "if" conditions:

@@
expression var, expr;
statement S;
@@

+ var = expr;
  if(
- (var = expr)
+ var
  ) S

Signed-off-by: Quentin Lambert <lambert.quentin@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Quentin Lambert 2014-09-07 20:03:32 +02:00 committed by Bjorn Helgaas
parent 656f978f9a
commit 79e50e7298
9 changed files with 66 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/pci/hotplug/acpi_pcihp.c
View File

@ -433,7 +433,8 @@ int acpi_pci_check_ejectable(struct pci_bus *pbus, acpi_handle handle)
{
acpi_handle bridge_handle, parent_handle;
if (!(bridge_handle = acpi_pci_get_bridge_handle(pbus)))
bridge_handle = acpi_pci_get_bridge_handle(pbus);
if (!bridge_handle)
return 0;
if ((ACPI_FAILURE(acpi_get_parent(handle, &parent_handle))))
return 0;

9
drivers/pci/hotplug/cpci_hotplug_core.c
View File

@ -125,7 +125,8 @@ disable_slot(struct hotplug_slot *hotplug_slot)
/* Unconfigure device */
dbg("%s - unconfiguring slot %s", __func__, slot_name(slot));
if ((retval = cpci_unconfigure_slot(slot))) {
retval = cpci_unconfigure_slot(slot);
if (retval) {
err("%s - could not unconfigure slot %s",
__func__, slot_name(slot));
goto disable_error;
@ -141,9 +142,11 @@ disable_slot(struct hotplug_slot *hotplug_slot)
}
cpci_led_on(slot);
if (controller->ops->set_power)
if ((retval = controller->ops->set_power(slot, 0)))
if (controller->ops->set_power) {
retval = controller->ops->set_power(slot, 0);
if (retval)
goto disable_error;
}
if (update_adapter_status(slot->hotplug_slot, 0))
warn("failure to update adapter file");

5
drivers/pci/hotplug/cpcihp_zt5550.c
View File

@ -237,8 +237,9 @@ static int zt5550_hc_init_one (struct pci_dev *pdev, const struct pci_device_id
dbg("registered controller");
/* Look for first device matching cPCI bus's bridge vendor and device IDs */
if (!(bus0_dev = pci_get_device(PCI_VENDOR_ID_DEC,
PCI_DEVICE_ID_DEC_21154, NULL))) {
bus0_dev = pci_get_device(PCI_VENDOR_ID_DEC,
PCI_DEVICE_ID_DEC_21154, NULL);
if (!bus0_dev) {
status = -ENODEV;
goto init_register_error;
}

15
drivers/pci/hotplug/ibmphp_core.c
View File

@ -1023,7 +1023,8 @@ static int enable_slot(struct hotplug_slot *hs)
debug("ENABLING SLOT........\n");
slot_cur = hs->private;
if ((rc = validate(slot_cur, ENABLE))) {
rc = validate(slot_cur, ENABLE);
if (rc) {
err("validate function failed\n");
goto error_nopower;
}
@ -1335,17 +1336,20 @@ static int __init ibmphp_init(void)
for (i = 0; i < 16; i++)
irqs[i] = 0;
if ((rc = ibmphp_access_ebda()))
rc = ibmphp_access_ebda();
if (rc)
goto error;
debug("after ibmphp_access_ebda()\n");
if ((rc = ibmphp_rsrc_init()))
rc = ibmphp_rsrc_init();
if (rc)
goto error;
debug("AFTER Resource & EBDA INITIALIZATIONS\n");
max_slots = get_max_slots();
if ((rc = ibmphp_register_pci()))
rc = ibmphp_register_pci();
if (rc)
goto error;
if (init_ops()) {
@ -1354,7 +1358,8 @@ static int __init ibmphp_init(void)
}
ibmphp_print_test();
if ((rc = ibmphp_hpc_start_poll_thread()))
rc = ibmphp_hpc_start_poll_thread();
if (rc)
goto error;
exit:

6
drivers/pci/hotplug/ibmphp_pci.c
View File

@ -145,7 +145,8 @@ int ibmphp_configure_card (struct pci_func *func, u8 slotno)
case PCI_HEADER_TYPE_NORMAL:
debug ("single device case.... vendor id = %x, hdr_type = %x, class = %x\n", vendor_id, hdr_type, class);
assign_alt_irq (cur_func, class_code);
if ((rc = configure_device (cur_func)) < 0) {
rc = configure_device(cur_func);
if (rc < 0) {
/* We need to do this in case some other BARs were properly inserted */
err ("was not able to configure devfunc %x on bus %x.\n",
cur_func->device, cur_func->busno);
@ -157,7 +158,8 @@ int ibmphp_configure_card (struct pci_func *func, u8 slotno)
break;
case PCI_HEADER_TYPE_MULTIDEVICE:
assign_alt_irq (cur_func, class_code);
if ((rc = configure_device (cur_func)) < 0) {
rc = configure_device(cur_func);
if (rc < 0) {
/* We need to do this in case some other BARs were properly inserted */
err ("was not able to configure devfunc %x on bus %x...bailing out\n",
cur_func->device, cur_func->busno);

30
drivers/pci/hotplug/ibmphp_res.c
View File

@ -224,7 +224,8 @@ int __init ibmphp_rsrc_init (void)
if ((curr->rsrc_type & RESTYPE) == MMASK) {
/* no bus structure exists in place yet */
if (list_empty (&gbuses)) {
if ((rc = alloc_bus_range (&newbus, &newrange, curr, MEM, 1)))
rc = alloc_bus_range(&newbus, &newrange, curr, MEM, 1);
if (rc)
return rc;
list_add_tail (&newbus->bus_list, &gbuses);
debug ("gbuses = NULL, Memory Primary Bus %x [%x - %x]\n", newbus->busno, newrange->start, newrange->end);
@ -237,7 +238,8 @@ int __init ibmphp_rsrc_init (void)
return rc;
} else {
/* went through all the buses and didn't find ours, need to create a new bus node */
if ((rc = alloc_bus_range (&newbus, &newrange, curr, MEM, 1)))
rc = alloc_bus_range(&newbus, &newrange, curr, MEM, 1);
if (rc)
return rc;
list_add_tail (&newbus->bus_list, &gbuses);
@ -248,7 +250,8 @@ int __init ibmphp_rsrc_init (void)
/* prefetchable memory */
if (list_empty (&gbuses)) {
/* no bus structure exists in place yet */
if ((rc = alloc_bus_range (&newbus, &newrange, curr, PFMEM, 1)))
rc = alloc_bus_range(&newbus, &newrange, curr, PFMEM, 1);
if (rc)
return rc;
list_add_tail (&newbus->bus_list, &gbuses);
debug ("gbuses = NULL, PFMemory Primary Bus %x [%x - %x]\n", newbus->busno, newrange->start, newrange->end);
@ -261,7 +264,8 @@ int __init ibmphp_rsrc_init (void)
return rc;
} else {
/* went through all the buses and didn't find ours, need to create a new bus node */
if ((rc = alloc_bus_range (&newbus, &newrange, curr, PFMEM, 1)))
rc = alloc_bus_range(&newbus, &newrange, curr, PFMEM, 1);
if (rc)
return rc;
list_add_tail (&newbus->bus_list, &gbuses);
debug ("1st Bus, PFMemory Primary Bus %x [%x - %x]\n", newbus->busno, newrange->start, newrange->end);
@ -271,7 +275,8 @@ int __init ibmphp_rsrc_init (void)
/* IO */
if (list_empty (&gbuses)) {
/* no bus structure exists in place yet */
if ((rc = alloc_bus_range (&newbus, &newrange, curr, IO, 1)))
rc = alloc_bus_range(&newbus, &newrange, curr, IO, 1);
if (rc)
return rc;
list_add_tail (&newbus->bus_list, &gbuses);
debug ("gbuses = NULL, IO Primary Bus %x [%x - %x]\n", newbus->busno, newrange->start, newrange->end);
@ -283,7 +288,8 @@ int __init ibmphp_rsrc_init (void)
return rc;
} else {
/* went through all the buses and didn't find ours, need to create a new bus node */
if ((rc = alloc_bus_range (&newbus, &newrange, curr, IO, 1)))
rc = alloc_bus_range(&newbus, &newrange, curr, IO, 1);
if (rc)
return rc;
list_add_tail (&newbus->bus_list, &gbuses);
debug ("1st Bus, IO Primary Bus %x [%x - %x]\n", newbus->busno, newrange->start, newrange->end);
@ -1153,7 +1159,9 @@ int ibmphp_check_resource (struct resource_node *res, u8 bridge)
}
} else {
/* in the same range */
if ((len_tmp = res_cur->start - 1 - res_prev->end - 1) >= res->len) {
len_tmp = res_cur->start - 1 - res_prev->end - 1;
if (len_tmp >= res->len) {
if ((len_tmp < len_cur) || (len_cur == 0)) {
if (((res_prev->end + 1) % tmp_divide) == 0) {
/* just perfect, starting address's divisible by length */
@ -1212,7 +1220,9 @@ int ibmphp_check_resource (struct resource_node *res, u8 bridge)
break;
}
while (range) {
if ((len_tmp = range->end - range->start) >= res->len) {
len_tmp = range->end - range->start;
if (len_tmp >= res->len) {
if ((len_tmp < len_cur) || (len_cur == 0)) {
if ((range->start % tmp_divide) == 0) {
/* just perfect, starting address's divisible by length */
@ -1276,7 +1286,9 @@ int ibmphp_check_resource (struct resource_node *res, u8 bridge)
break;
}
while (range) {
if ((len_tmp = range->end - range->start) >= res->len) {
len_tmp = range->end - range->start;
if (len_tmp >= res->len) {
if ((len_tmp < len_cur) || (len_cur == 0)) {
if ((range->start % tmp_divide) == 0) {
/* just perfect, starting address's divisible by length */

12
drivers/pci/hotplug/shpchp_ctrl.c
View File

@ -195,7 +195,8 @@ static int change_bus_speed(struct controller *ctrl, struct slot *p_slot,
int rc = 0;
ctrl_dbg(ctrl, "Change speed to %d\n", speed);
if ((rc = p_slot->hpc_ops->set_bus_speed_mode(p_slot, speed))) {
rc = p_slot->hpc_ops->set_bus_speed_mode(p_slot, speed);
if (rc) {
ctrl_err(ctrl, "%s: Issue of set bus speed mode command failed\n",
__func__);
return WRONG_BUS_FREQUENCY;
@ -261,14 +262,16 @@ static int board_added(struct slot *p_slot)
}
if ((ctrl->pci_dev->vendor == 0x8086) && (ctrl->pci_dev->device == 0x0332)) {
if ((rc = p_slot->hpc_ops->set_bus_speed_mode(p_slot, PCI_SPEED_33MHz))) {
rc = p_slot->hpc_ops->set_bus_speed_mode(p_slot, PCI_SPEED_33MHz);
if (rc) {
ctrl_err(ctrl, "%s: Issue of set bus speed mode command failed\n",
__func__);
return WRONG_BUS_FREQUENCY;
}
/* turn on board, blink green LED, turn off Amber LED */
if ((rc = p_slot->hpc_ops->slot_enable(p_slot))) {
rc = p_slot->hpc_ops->slot_enable(p_slot);
if (rc) {
ctrl_err(ctrl, "Issue of Slot Enable command failed\n");
return rc;
}
@ -296,7 +299,8 @@ static int board_added(struct slot *p_slot)
return rc;
/* turn on board, blink green LED, turn off Amber LED */
if ((rc = p_slot->hpc_ops->slot_enable(p_slot))) {
rc = p_slot->hpc_ops->slot_enable(p_slot);
if (rc) {
ctrl_err(ctrl, "Issue of Slot Enable command failed\n");
return rc;
}

3
drivers/pci/hotplug/shpchp_hpc.c
View File

@ -466,7 +466,8 @@ static int hpc_get_adapter_speed(struct slot *slot, enum pci_bus_speed *value)
u8 m66_cap = !!(slot_reg & MHZ66_CAP);
u8 pi, pcix_cap;
if ((retval = hpc_get_prog_int(slot, &pi)))
retval = hpc_get_prog_int(slot, &pi);
if (retval)
return retval;
switch (pi) {

13
drivers/pci/pci.c
View File

@ -1003,12 +1003,19 @@ int pci_save_state(struct pci_dev *dev)
for (i = 0; i < 16; i++)
pci_read_config_dword(dev, i * 4, &dev->saved_config_space[i]);
dev->state_saved = true;
if ((i = pci_save_pcie_state(dev)) != 0)
i = pci_save_pcie_state(dev);
if (i != 0)
return i;
if ((i = pci_save_pcix_state(dev)) != 0)
i = pci_save_pcix_state(dev);
if (i != 0)
return i;
if ((i = pci_save_vc_state(dev)) != 0)
i = pci_save_vc_state(dev);
if (i != 0)
return i;
return 0;
}
EXPORT_SYMBOL(pci_save_state);