diff options
Diffstat (limited to 'drivers/pci/hotplug/shpchp_hpc.c')
| -rw-r--r-- | drivers/pci/hotplug/shpchp_hpc.c | 59 |
1 files changed, 26 insertions, 33 deletions
diff --git a/drivers/pci/hotplug/shpchp_hpc.c b/drivers/pci/hotplug/shpchp_hpc.c index f6b3bf3ee7c..3a8186c405f 100644 --- a/drivers/pci/hotplug/shpchp_hpc.c +++ b/drivers/pci/hotplug/shpchp_hpc.c @@ -221,8 +221,7 @@ static spinlock_t list_lock; static atomic_t shpchp_num_controllers = ATOMIC_INIT(0); static irqreturn_t shpc_isr(int irq, void *dev_id, struct pt_regs *regs); - -static void start_int_poll_timer(struct php_ctlr_state_s *php_ctlr, int seconds); +static void start_int_poll_timer(struct php_ctlr_state_s *php_ctlr, int sec); static int hpc_check_cmd_status(struct controller *ctrl); static inline u8 shpc_readb(struct controller *ctrl, int reg) @@ -268,47 +267,41 @@ static inline int shpc_indirect_read(struct controller *ctrl, int index, return pci_read_config_dword(pdev, cap_offset + DWORD_DATA, value); } -/* This is the interrupt polling timeout function. */ +/* + * This is the interrupt polling timeout function. + */ static void int_poll_timeout(unsigned long lphp_ctlr) { - struct php_ctlr_state_s *php_ctlr = (struct php_ctlr_state_s *)lphp_ctlr; - - DBG_ENTER_ROUTINE + struct php_ctlr_state_s *php_ctlr = + (struct php_ctlr_state_s *)lphp_ctlr; - if ( !php_ctlr ) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return; - } + DBG_ENTER_ROUTINE - /* Poll for interrupt events. regs == NULL => polling */ - shpc_isr(0, php_ctlr->callback_instance_id, NULL ); + /* Poll for interrupt events. regs == NULL => polling */ + shpc_isr(0, php_ctlr->callback_instance_id, NULL); - init_timer(&php_ctlr->int_poll_timer); + init_timer(&php_ctlr->int_poll_timer); if (!shpchp_poll_time) - shpchp_poll_time = 2; /* reset timer to poll in 2 secs if user doesn't specify at module installation*/ + shpchp_poll_time = 2; /* default polling interval is 2 sec */ - start_int_poll_timer(php_ctlr, shpchp_poll_time); - - return; + start_int_poll_timer(php_ctlr, shpchp_poll_time); + + DBG_LEAVE_ROUTINE } -/* This function starts the interrupt polling timer. */ -static void start_int_poll_timer(struct php_ctlr_state_s *php_ctlr, int seconds) +/* + * This function starts the interrupt polling timer. + */ +static void start_int_poll_timer(struct php_ctlr_state_s *php_ctlr, int sec) { - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return; - } - - if ( ( seconds <= 0 ) || ( seconds > 60 ) ) - seconds = 2; /* Clamp to sane value */ - - php_ctlr->int_poll_timer.function = &int_poll_timeout; - php_ctlr->int_poll_timer.data = (unsigned long)php_ctlr; /* Instance data */ - php_ctlr->int_poll_timer.expires = jiffies + seconds * HZ; - add_timer(&php_ctlr->int_poll_timer); - - return; + /* Clamp to sane value */ + if ((sec <= 0) || (sec > 60)) + sec = 2; + + php_ctlr->int_poll_timer.function = &int_poll_timeout; + php_ctlr->int_poll_timer.data = (unsigned long)php_ctlr; + php_ctlr->int_poll_timer.expires = jiffies + sec * HZ; + add_timer(&php_ctlr->int_poll_timer); } static inline int shpc_wait_cmd(struct controller *ctrl) |