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authorAlexander Usyskin <alexander.usyskin@intel.com>2015-01-25 23:45:28 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-02-03 15:48:51 -0800
commit663b7ee9517eec6deea9a48c7a1392a9a34f7809 (patch)
treeee60e113a4f59ca265f85f22dab564972a659d6a /drivers/misc
parent1ab1e79b9fd4b01331490bbe2e630a0fc0b25449 (diff)
downloadop-kernel-dev-663b7ee9517eec6deea9a48c7a1392a9a34f7809.zip
op-kernel-dev-663b7ee9517eec6deea9a48c7a1392a9a34f7809.tar.gz
mei: me: release hw from reset only during the reset flow
We might enter the interrupt handler with hw_ready already set, but prior we actually started the reset flow. To soleve this we move the reset release from the interrupt handler to the HW start wait function which is part of the reset sequence. Cc: <stable@vger.kernel.org> #3.10+ Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> 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/hw-me.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c
index ccc1b40..f8fd503 100644
--- a/drivers/misc/mei/hw-me.c
+++ b/drivers/misc/mei/hw-me.c
@@ -335,6 +335,7 @@ static int mei_me_hw_ready_wait(struct mei_device *dev)
return -ETIME;
}
+ mei_me_hw_reset_release(dev);
dev->recvd_hw_ready = false;
return 0;
}
@@ -731,9 +732,7 @@ irqreturn_t mei_me_irq_thread_handler(int irq, void *dev_id)
/* check if we need to start the dev */
if (!mei_host_is_ready(dev)) {
if (mei_hw_is_ready(dev)) {
- mei_me_hw_reset_release(dev);
dev_dbg(dev->dev, "we need to start the dev.\n");
-
dev->recvd_hw_ready = true;
wake_up(&dev->wait_hw_ready);
} else {
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