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| author | Tomas Winkler <tomas.winkler@intel.com> | 2012-06-19 09:13:36 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-06-20 16:41:38 -0700 |
| commit | 7d5e0e59542ac452585e3a33abcad6e26b4dec4a (patch) | |
| tree | 65ca4973cc393a66adff7def5401f0d84903f7ae | |
| parent | 169d1338ed4ed91412761a77095a13b9992993ba (diff) | |
| download | linux-7d5e0e59542ac452585e3a33abcad6e26b4dec4a.tar.bz2 | |
mei: mei_irq_thread_write_handler check for overflow
check for overflow when retrieving empty write slots
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/misc/mei/interrupt.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c index 83e80bc08d77..8e4dd74b96e5 100644 --- a/drivers/misc/mei/interrupt.c +++ b/drivers/misc/mei/interrupt.c @@ -1204,6 +1204,9 @@ static int mei_irq_thread_write_handler(struct mei_io_list *cmpl_list, return 0; } *slots = mei_count_empty_write_slots(dev); + if (*slots <= 0) + return -EMSGSIZE; + /* complete all waiting for write CB */ dev_dbg(&dev->pdev->dev, "complete all waiting for write cb.\n"); |