diff options
author | Tomas Winkler <tomas.winkler@intel.com> | 2012-11-18 13:13:18 (GMT) |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-11-21 20:43:58 (GMT) |
commit | 9a84d616980215d1d9222173c60329b57680483b (patch) | |
tree | a02f3ebc461b39f09eab24467bc3547eb12164df /drivers/misc | |
parent | 24c656e55f3985b6f5c0e2264243f7076f376193 (diff) | |
download | linux-9a84d616980215d1d9222173c60329b57680483b.tar.xz |
mei: don't mix read and write slots
Do not pass read slots pointer into function
mei_irq_thread_write_handler, the write
slots management is handled internally in the write
handler
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc')
-rw-r--r-- | drivers/misc/mei/interrupt.c | 35 |
1 files changed, 19 insertions, 16 deletions
diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c index d30db38..cccb63a 100644 --- a/drivers/misc/mei/interrupt.c +++ b/drivers/misc/mei/interrupt.c @@ -901,27 +901,27 @@ end: * mei_irq_thread_write_handler - bottom half write routine after * ISR to handle the write processing. * - * @cmpl_list: An instance of our list structure * @dev: the device structure - * @slots: slots to write. + * @cmpl_list: An instance of our list structure * * returns 0 on success, <0 on failure. */ -static int mei_irq_thread_write_handler(struct mei_cl_cb *cmpl_list, - struct mei_device *dev, s32 *slots) +static int mei_irq_thread_write_handler(struct mei_device *dev, + struct mei_cl_cb *cmpl_list) { struct mei_cl *cl; struct mei_cl_cb *pos = NULL, *next = NULL; struct mei_cl_cb *list; + s32 slots; int ret; if (!mei_hbuf_is_empty(dev)) { dev_dbg(&dev->pdev->dev, "host buffer is not empty.\n"); return 0; } - *slots = mei_hbuf_empty_slots(dev); - if (*slots <= 0) + slots = mei_hbuf_empty_slots(dev); + if (slots <= 0) return -EMSGSIZE; /* complete all waiting for write CB */ @@ -945,7 +945,7 @@ static int mei_irq_thread_write_handler(struct mei_cl_cb *cmpl_list, if (cl == &dev->iamthif_cl) { dev_dbg(&dev->pdev->dev, "check iamthif flow control.\n"); if (dev->iamthif_flow_control_pending) { - ret = mei_amthif_irq_read(dev, slots); + ret = mei_amthif_irq_read(dev, &slots); if (ret) return ret; } @@ -960,7 +960,7 @@ static int mei_irq_thread_write_handler(struct mei_cl_cb *cmpl_list, if (dev->wr_ext_msg.hdr.length) { mei_write_message(dev, &dev->wr_ext_msg.hdr, dev->wr_ext_msg.data, dev->wr_ext_msg.hdr.length); - *slots -= mei_data2slots(dev->wr_ext_msg.hdr.length); + slots -= mei_data2slots(dev->wr_ext_msg.hdr.length); dev->wr_ext_msg.hdr.length = 0; } if (dev->dev_state == MEI_DEV_ENABLED) { @@ -974,9 +974,9 @@ static int mei_irq_thread_write_handler(struct mei_cl_cb *cmpl_list, dev->wd_pending = false; if (dev->wd_state == MEI_WD_RUNNING) - *slots -= mei_data2slots(MEI_WD_START_MSG_SIZE); + slots -= mei_data2slots(MEI_WD_START_MSG_SIZE); else - *slots -= mei_data2slots(MEI_WD_STOP_MSG_SIZE); + slots -= mei_data2slots(MEI_WD_STOP_MSG_SIZE); } } @@ -991,14 +991,16 @@ static int mei_irq_thread_write_handler(struct mei_cl_cb *cmpl_list, switch (pos->fop_type) { case MEI_FOP_CLOSE: /* send disconnect message */ - ret = _mei_irq_thread_close(dev, slots, pos, cl, cmpl_list); + ret = _mei_irq_thread_close(dev, &slots, pos, + cl, cmpl_list); if (ret) return ret; break; case MEI_FOP_READ: /* send flow control message */ - ret = _mei_irq_thread_read(dev, slots, pos, cl, cmpl_list); + ret = _mei_irq_thread_read(dev, &slots, pos, + cl, cmpl_list); if (ret) return ret; @@ -1007,7 +1009,8 @@ static int mei_irq_thread_write_handler(struct mei_cl_cb *cmpl_list, /* connect message */ if (mei_other_client_is_connecting(dev, cl)) continue; - ret = _mei_irq_thread_ioctl(dev, slots, pos, cl, cmpl_list); + ret = _mei_irq_thread_ioctl(dev, &slots, pos, + cl, cmpl_list); if (ret) return ret; @@ -1032,7 +1035,7 @@ static int mei_irq_thread_write_handler(struct mei_cl_cb *cmpl_list, cl->host_client_id); continue; } - ret = mei_irq_thread_write_complete(dev, slots, pos, + ret = mei_irq_thread_write_complete(dev, &slots, pos, cmpl_list); if (ret) return ret; @@ -1046,7 +1049,7 @@ static int mei_irq_thread_write_handler(struct mei_cl_cb *cmpl_list, cl->host_client_id); continue; } - ret = mei_amthif_irq_write_complete(dev, slots, + ret = mei_amthif_irq_write_complete(dev, &slots, pos, cmpl_list); if (ret) return ret; @@ -1238,7 +1241,7 @@ irqreturn_t mei_interrupt_thread_handler(int irq, void *dev_id) if (rets) goto end; } - rets = mei_irq_thread_write_handler(&complete_list, dev, &slots); + rets = mei_irq_thread_write_handler(dev, &complete_list); end: dev_dbg(&dev->pdev->dev, "end of bottom half function.\n"); dev->host_hw_state = mei_hcsr_read(dev); |