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[PATCH] PCI: cpqphp_ctrl.c: board_replaced(): remove dead code 

The Coverity checker correctly noted, that in function board_replaced in
drivers/pci/hotplug/cpqphp_ctrl.c, the variable src always has the
value 8, and therefore much code after the

...
                        if (rc || src) {
...
                                if (rc)
                                        return rc;
                                else
                                        return 1;
                        }
...

can never be called.

This patch removes the unreachable code in this function fixing kernel
Bugzilla #6073.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Adrian Bunk 2006-02-26 22:16:51 +01:00 committed by Greg Kroah-Hartman
parent 0cccd0c206
commit 1305e9184a
1 changed files with 14 additions and 62 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

76
drivers/pci/hotplug/cpqphp_ctrl.c
View File

@ -1282,9 +1282,7 @@ static u32 board_replaced(struct pci_func *func, struct controller *ctrl)
u8 hp_slot;
u8 temp_byte;
u8 adapter_speed;
u32 index;
u32 rc = 0;
u32 src = 8;
hp_slot = func->device - ctrl->slot_device_offset;
@ -1368,68 +1366,17 @@ static u32 board_replaced(struct pci_func *func, struct controller *ctrl)
rc = cpqhp_configure_board(ctrl, func);
if (rc || src) {
/* If configuration fails, turn it off
* Get slot won't work for devices behind
* bridges, but in this case it will always be
* called for the "base" bus/dev/func of an
* adapter. */
mutex_lock(&ctrl->crit_sect);
amber_LED_on (ctrl, hp_slot);
green_LED_off (ctrl, hp_slot);
slot_disable (ctrl, hp_slot);
set_SOGO(ctrl);
/* Wait for SOBS to be unset */
wait_for_ctrl_irq (ctrl);
mutex_unlock(&ctrl->crit_sect);
if (rc)
return rc;
else
return 1;
}
func->status = 0;
func->switch_save = 0x10;
index = 1;
while (((func = cpqhp_slot_find(func->bus, func->device, index)) != NULL) && !rc) {
rc |= cpqhp_configure_board(ctrl, func);
index++;
}
if (rc) {
/* If configuration fails, turn it off
* Get slot won't work for devices behind
* bridges, but in this case it will always be
* called for the "base" bus/dev/func of an
* adapter. */
mutex_lock(&ctrl->crit_sect);
amber_LED_on (ctrl, hp_slot);
green_LED_off (ctrl, hp_slot);
slot_disable (ctrl, hp_slot);
set_SOGO(ctrl);
/* Wait for SOBS to be unset */
wait_for_ctrl_irq (ctrl);
mutex_unlock(&ctrl->crit_sect);
return rc;
}
/* Done configuring so turn LED on full time */
/* If configuration fails, turn it off
* Get slot won't work for devices behind
* bridges, but in this case it will always be
* called for the "base" bus/dev/func of an
* adapter. */
mutex_lock(&ctrl->crit_sect);
green_LED_on (ctrl, hp_slot);
amber_LED_on (ctrl, hp_slot);
green_LED_off (ctrl, hp_slot);
slot_disable (ctrl, hp_slot);
set_SOGO(ctrl);
@ -1437,7 +1384,12 @@ static u32 board_replaced(struct pci_func *func, struct controller *ctrl)
wait_for_ctrl_irq (ctrl);
mutex_unlock(&ctrl->crit_sect);
rc = 0;
if (rc)
return rc;
else
return 1;
} else {
/* Something is wrong