Hi,
On Wed, Jan 11 2012, Nath, Arindam wrote:
> I think we can push this patch now. If someone has any objections, we
> can discuss later.
>
> Acked-by: Arindam Nath <[email protected]>
Thanks, I agree. Guennadi, I've merged it for 3.3 with the following change:
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index f0b464f..bec0bf2 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -2175,6 +2175,7 @@ void mmc_stop_host(struct mmc_host *host)
mmc_bus_get(host);
if (host->bus_ops && !host->bus_dead) {
+ /* Calling bus_ops->remove() with a claimed host can deadlock */
if (host->bus_ops->remove)
host->bus_ops->remove(host);
@@ -2398,7 +2399,9 @@ int mmc_suspend_host(struct mmc_host *host)
if (err == -ENOSYS || !host->bus_ops->resume) {
/*
* We simply "remove" the card in this case.
- * It will be redetected on resume.
+ * It will be redetected on resume. (Calling
+ * bus_ops->remove() with a claimed host can
+ * deadlock.)
*/
if (host->bus_ops->remove)
host->bus_ops->remove(host);
@@ -2491,7 +2494,7 @@ int mmc_pm_notify(struct notifier_block *notify_block,
if (!host->bus_ops || host->bus_ops->suspend)
break;
- /* On 2 occasions above bus_ops->remove() is called unlocked */
+ /* Calling bus_ops->remove() with a claimed host can deadlock */
if (host->bus_ops->remove)
host->bus_ops->remove(host);
--
Chris Ball <[email protected]> <http://printf.net/>
One Laptop Per Child
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