linux-kernel - [PATCH] isicom: istallion prepare for lock

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Message-ID: <20080220201657.09d184d3@core>
Date:	Wed, 20 Feb 2008 20:16:57 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	akpm@...l.org, linux-kernel@...r.kernel.org
Subject: [PATCH] isicom: istallion prepare for lock_kernel pushdown

This is an ancient driver so just wrap it in lock_kernel internally and
be done.

Signed-off-by: Alan Cox <alan@...hat.com>

diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.25-rc2-mm1/drivers/char/istallion.c linux-2.6.25-rc2-mm1/drivers/char/istallion.c
--- linux.vanilla-2.6.25-rc2-mm1/drivers/char/istallion.c	2008-02-19 11:03:00.000000000 +0000
+++ linux-2.6.25-rc2-mm1/drivers/char/istallion.c	2008-02-20 11:45:50.000000000 +0000
@@ -4433,6 +4433,8 @@
 	done = 0;
 	rc = 0;
 
+	lock_kernel();
+	
 	switch (cmd) {
 	case COM_GETPORTSTATS:
 		rc = stli_getportstats(NULL, argp);
@@ -4455,7 +4457,8 @@
 		done++;
 		break;
 	}
-
+	unlock_kernel();
+	
 	if (done)
 		return rc;
 
@@ -4472,6 +4475,8 @@
 	if (brdp->state == 0)
 		return -ENODEV;
 
+	lock_kernel();
+	
 	switch (cmd) {
 	case STL_BINTR:
 		EBRDINTR(brdp);
@@ -4494,6 +4499,7 @@
 		rc = -ENOIOCTLCMD;
 		break;
 	}
+	unlock_kernel();
 	return rc;
 }
 
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