From: Hugh Dickins <hugh@veritas.com>
Date: Fri, 10 Mar 2006 21:13:44 +0000 (+0000)
Subject: [PATCH] fix pcmcia_device_probe oops
X-Git-Tag: v2.6.16-rc6~29
X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=4ceadbf519c6820b236a9a213255260eb825974b;p=linux-2.6-omap-h63xx.git

[PATCH] fix pcmcia_device_probe oops

Fix pcmcia_device_probe NULL pointer dereference at startup.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c
index 54ad93daca3..bb96ce1db08 100644
--- a/drivers/pcmcia/ds.c
+++ b/drivers/pcmcia/ds.c
@@ -411,7 +411,7 @@ static int pcmcia_device_probe(struct device * dev)
 	 * pseudo devices, and if not, add the second one.
 	 */
 	did = (struct pcmcia_device_id *) p_dev->dev.driver_data;
-	if ((did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) &&
+	if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) &&
 	    (p_dev->socket->device_count == 1) && (p_dev->device_no == 0))
 		pcmcia_add_pseudo_device(p_dev->socket);