From: Ben Dooks <ben-linux@fluff.org>
Date: Mon, 30 Jun 2008 21:40:31 +0000 (+0100)
Subject: MMC: S3C24XX: Ensure host->mrq->data is valid
X-Git-Tag: v2.6.27-rc1~1047^2~19
X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=7c14450ed6ab4ed453b2bf216ca3aaa7a5402af3;p=linux-2.6-omap-h63xx.git

MMC: S3C24XX: Ensure host->mrq->data is valid

Fix a crash if host->mrq->data is NULL on ending a transfer.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
---

diff --git a/drivers/mmc/host/s3cmci.c b/drivers/mmc/host/s3cmci.c
index 4fd11d8864e..ffd9269a187 100644
--- a/drivers/mmc/host/s3cmci.c
+++ b/drivers/mmc/host/s3cmci.c
@@ -353,7 +353,8 @@ static void pio_tasklet(unsigned long data)
 			    (host->pio_active == XFER_READ) ? "read" : "write",
 			    host->pio_count, host->pio_words);
 
-			host->mrq->data->error = -EINVAL;
+			if (host->mrq->data)
+				host->mrq->data->error = -EINVAL;
 		}
 
 		finalize_request(host);