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macintosh-smu: BKL pushdown
author
Arnd Bergmann
<arnd@arndb.de>
Tue, 20 May 2008 17:16:11 +0000
(19:16 +0200)
committer
Jonathan Corbet
<corbet@lwn.net>
Fri, 20 Jun 2008 20:05:58 +0000
(14:05 -0600)
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
drivers/macintosh/smu.c
patch
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diff --git
a/drivers/macintosh/smu.c
b/drivers/macintosh/smu.c
index
77ad192
..
b82fcd2
100644
(file)
--- a/
drivers/macintosh/smu.c
+++ b/
drivers/macintosh/smu.c
@@
-19,6
+19,7
@@
* the userland interface
*/
+#include <linux/smp_lock.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/device.h>
@@
-1083,10
+1084,12
@@
static int smu_open(struct inode *inode, struct file *file)
pp->mode = smu_file_commands;
init_waitqueue_head(&pp->wait);
+ lock_kernel();
spin_lock_irqsave(&smu_clist_lock, flags);
list_add(&pp->list, &smu_clist);
spin_unlock_irqrestore(&smu_clist_lock, flags);
file->private_data = pp;
+ unlock_kernel();
return 0;
}