linux-kernel - [PATCH 6/8] au1xmmc: abort requests early if no card is present.

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Message-ID: <20080609063911.GG8724@roarinelk.homelinux.net>
Date:	Mon, 9 Jun 2008 08:39:11 +0200
From:	Manuel Lauss <mano@...rinelk.homelinux.net>
To:	linux-mips@...ux-mips.org, sshtylyov@...mvista.com,
	drzeus@...eus.cx, linux-kernel@...r.kernel.org
Subject: [PATCH 6/8] au1xmmc: abort requests early if no card is present.

>From a478fbe20735b832696ba4cc0d3d21eb7371e689 Mon Sep 17 00:00:00 2001
From: Manuel Lauss <mlau@...-ge.com>
Date: Sun, 18 May 2008 15:52:43 +0200
Subject: [PATCH] au1xmmc: abort requests early if no card is present

Don't process an MMC request if no card is present.

Signed-off-by: Manuel Lauss <mano@...rinelk.homelinux.net>
---
 drivers/mmc/host/au1xmmc.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/drivers/mmc/host/au1xmmc.c b/drivers/mmc/host/au1xmmc.c
index fcbaf40..718eb87 100644
--- a/drivers/mmc/host/au1xmmc.c
+++ b/drivers/mmc/host/au1xmmc.c
@@ -697,6 +697,13 @@ static void au1xmmc_request(struct mmc_host* mmc, struct mmc_request* mrq)
 	host->mrq = mrq;
 	host->status = HOST_S_CMD;
 
+	/* fail request immediately if no card is present */
+	if (0 == au1xmmc_card_inserted(host)) {
+		mrq->cmd->error = -ENOMEDIUM;
+		au1xmmc_finish_request(host);
+		return;
+	}
+
 	if (mrq->data) {
 		FLUSH_FIFO(host);
 		ret = au1xmmc_prepare_data(host, mrq->data);
-- 
1.5.5.3

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