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Message-Id: <1340086417-23090-3-git-send-email-tomas.winkler@intel.com> Date: Tue, 19 Jun 2012 09:13:36 +0300 From: Tomas Winkler <tomas.winkler@...el.com> To: gregkh@...uxfoundation.org Cc: arnd@...db.de, alan@...ux.intel.com, linux-kernel@...r.kernel.org, Tomas Winkler <tomas.winkler@...el.com> Subject: [char-misc-next 3/4] mei: mei_irq_thread_write_handler check for overflow check for overflow when retrieving empty write slots Change-Id: Icdbe6c671686e55c322de66901dada365a3ea105 Signed-off-by: Tomas Winkler <tomas.winkler@...el.com> --- 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 86380fd..7ea0254 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"); -- 1.7.4.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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