linux-kernel - [PATCH] mmc: Fix re-probing after hibernation

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Date:	Wed,  8 Dec 2010 16:23:59 +0100
From:	Takashi Iwai <tiwai@...e.de>
To:	Chris Ball <cjb@...top.org>
Cc:	Maxim Levitsky <maximlevitsky@...il.com>,
	Oliver Neukum <oneukum@...e.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] mmc: Fix re-probing after hibernation

The commit 4c2ef25fe0b847d2ae818f74758ddb0be1c27d8e
  mmc: fix all hangs related to mmc/sd card insert/removal during
  suspend/resume
introduced a bug where the device probing no longer works after
hibernation.  This was because the pm notifier expects
PM_POST_HIBERNATION call while the system sends PM_POST_RESTORE
instead, thus disable_rescan is kept as 1.

Cc: <stable@...nel.org>
Signed-off-by: Takashi Iwai <tiwai@...e.de>
---
 drivers/mmc/core/core.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 31ae07a..30094f6 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -1772,7 +1772,7 @@ int mmc_pm_notify(struct notifier_block *notify_block,
 		break;
 
 	case PM_POST_SUSPEND:
-	case PM_POST_HIBERNATION:
+	case PM_POST_RESTORE:
 
 		spin_lock_irqsave(&host->lock, flags);
 		host->rescan_disable = 0;
-- 
1.7.3.1

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