diff options
| author | Tomas Winkler <tomas.winkler@intel.com> | 2014-02-19 17:35:47 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-02-28 15:15:56 -0800 |
| commit | 6aae48ff18f2fcfb533d2b448ecae16d1de006c1 (patch) | |
| tree | 1e886fe2f579ed8dea6f594219e591f7c6820d89 /drivers/misc/mei/interrupt.c | |
| parent | 4a22176aa89b8121a5160064d77244e26fe38790 (diff) | |
| download | linux-6aae48ff18f2fcfb533d2b448ecae16d1de006c1.tar.gz | |
mei: add mei_hbuf_acquire wrapper
A client has to acquire host buffer
before writing, we add lock like wrapper
to replace the code snippet
if (dev->hbuf_is_ready)
dev->hbuf_is_ready = false;
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/mei/interrupt.c')
| -rw-r--r-- | drivers/misc/mei/interrupt.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c index 6c4597e9b997..aed03efa72f4 100644 --- a/drivers/misc/mei/interrupt.c +++ b/drivers/misc/mei/interrupt.c @@ -446,10 +446,10 @@ int mei_irq_write_handler(struct mei_device *dev, struct mei_cl_cb *cmpl_list) s32 slots; int ret; - if (!mei_hbuf_is_ready(dev)) { - dev_dbg(&dev->pdev->dev, "host buffer is not empty.\n"); + + if (!mei_hbuf_acquire(dev)) return 0; - } + slots = mei_hbuf_empty_slots(dev); if (slots <= 0) return -EMSGSIZE; |