diff options
Diffstat (limited to 'drivers/pci/hotplug/shpchp_hpc.c')
-rw-r--r-- | drivers/pci/hotplug/shpchp_hpc.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/pci/hotplug/shpchp_hpc.c b/drivers/pci/hotplug/shpchp_hpc.c index 446e9beff046..4826dd158deb 100644 --- a/drivers/pci/hotplug/shpchp_hpc.c +++ b/drivers/pci/hotplug/shpchp_hpc.c | |||
@@ -302,6 +302,12 @@ static void start_int_poll_timer(struct php_ctlr_state_s *php_ctlr, int sec) | |||
302 | add_timer(&php_ctlr->int_poll_timer); | 302 | add_timer(&php_ctlr->int_poll_timer); |
303 | } | 303 | } |
304 | 304 | ||
305 | static inline int is_ctrl_busy(struct controller *ctrl) | ||
306 | { | ||
307 | u16 cmd_status = shpc_readw(ctrl, CMD_STATUS); | ||
308 | return cmd_status & 0x1; | ||
309 | } | ||
310 | |||
305 | /* | 311 | /* |
306 | * Returns 1 if SHPC finishes executing a command within 1 sec, | 312 | * Returns 1 if SHPC finishes executing a command within 1 sec, |
307 | * otherwise returns 0. | 313 | * otherwise returns 0. |
@@ -309,16 +315,14 @@ static void start_int_poll_timer(struct php_ctlr_state_s *php_ctlr, int sec) | |||
309 | static inline int shpc_poll_ctrl_busy(struct controller *ctrl) | 315 | static inline int shpc_poll_ctrl_busy(struct controller *ctrl) |
310 | { | 316 | { |
311 | int i; | 317 | int i; |
312 | u16 cmd_status = shpc_readw(ctrl, CMD_STATUS); | ||
313 | 318 | ||
314 | if (!(cmd_status & 0x1)) | 319 | if (!is_ctrl_busy(ctrl)) |
315 | return 1; | 320 | return 1; |
316 | 321 | ||
317 | /* Check every 0.1 sec for a total of 1 sec */ | 322 | /* Check every 0.1 sec for a total of 1 sec */ |
318 | for (i = 0; i < 10; i++) { | 323 | for (i = 0; i < 10; i++) { |
319 | msleep(100); | 324 | msleep(100); |
320 | cmd_status = shpc_readw(ctrl, CMD_STATUS); | 325 | if (!is_ctrl_busy(ctrl)) |
321 | if (!(cmd_status & 0x1)) | ||
322 | return 1; | 326 | return 1; |
323 | } | 327 | } |
324 | 328 | ||
@@ -336,7 +340,7 @@ static inline int shpc_wait_cmd(struct controller *ctrl) | |||
336 | else | 340 | else |
337 | rc = wait_event_interruptible_timeout(ctrl->queue, | 341 | rc = wait_event_interruptible_timeout(ctrl->queue, |
338 | !ctrl->cmd_busy, timeout); | 342 | !ctrl->cmd_busy, timeout); |
339 | if (!rc) { | 343 | if (!rc && is_ctrl_busy(ctrl)) { |
340 | retval = -EIO; | 344 | retval = -EIO; |
341 | err("Command not completed in 1000 msec\n"); | 345 | err("Command not completed in 1000 msec\n"); |
342 | } else if (rc < 0) { | 346 | } else if (rc < 0) { |