linux-kernel - [PATCH 13/18] MMC: OMAP: Check the get_cover

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Date:	Wed, 26 Mar 2008 16:09:38 -0400
From:	Carlos Aguiar <carlos.aguiar@...t.org.br>
To:	ext Pierre Ossman <drzeus-list@...eus.cx>
CC:	Tony Lindgren <tony@...mide.com>, linux-kernel@...r.kernel.org
Subject: [PATCH 13/18] MMC: OMAP: Check the get_cover_state function pointer
 if not set

From: Kyungmin Park <kyungmin.park@...sung.com>

If the get_cover_state is not set, it occurs the oops.

Signed-off-by: Kyungmin Park <kyungmin.park@...sung.com>
Signed-off-by: Tony Lindgren <tony@...mide.com>
---
 drivers/mmc/host/omap.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c
index 9ac1066..0e7ceb0 100644
--- a/drivers/mmc/host/omap.c
+++ b/drivers/mmc/host/omap.c
@@ -236,7 +236,10 @@ static void mmc_omap_release_slot(struct mmc_omap_slot *slot)
 static inline
 int mmc_omap_cover_is_open(struct mmc_omap_slot *slot)
 {
-	return slot->pdata->get_cover_state(mmc_dev(slot->mmc), slot->id);
+	if (slot->pdata->get_cover_state)
+		return slot->pdata->get_cover_state(mmc_dev(slot->mmc),
+						    slot->id);
+	return 0;
 }
 
 static ssize_t
-- 1.5.3.GIT

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