summaryrefslogtreecommitdiffstats
path: root/drivers/scsi/megaraid/megaraid_mm.c
diff options
context:
space:
mode:
authorDavid Woodhouse <David.Woodhouse@intel.com>2010-10-30 12:35:11 +0100
committerDavid Woodhouse <David.Woodhouse@intel.com>2010-10-30 12:35:11 +0100
commit67577927e8d7a1f4b09b4992df640eadc6aacb36 (patch)
tree2e9efe6b5745965faf0dcc084d4613d9356263f9 /drivers/scsi/megaraid/megaraid_mm.c
parent6fe4c590313133ebd5dadb769031489ff178ece1 (diff)
parent51f00a471ce8f359627dd99aeac322947a0e491b (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
Conflicts: drivers/mtd/mtd_blkdevs.c Merge Grant's device-tree bits so that we can apply the subsequent fixes. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/scsi/megaraid/megaraid_mm.c')
-rw-r--r--drivers/scsi/megaraid/megaraid_mm.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/scsi/megaraid/megaraid_mm.c b/drivers/scsi/megaraid/megaraid_mm.c
index 41f82f76d88..a7008c0c24f 100644
--- a/drivers/scsi/megaraid/megaraid_mm.c
+++ b/drivers/scsi/megaraid/megaraid_mm.c
@@ -16,11 +16,12 @@
*/
#include <linux/sched.h>
#include <linux/slab.h>
-#include <linux/smp_lock.h>
+#include <linux/mutex.h>
#include "megaraid_mm.h"
// Entry points for char node driver
+static DEFINE_MUTEX(mraid_mm_mutex);
static int mraid_mm_open(struct inode *, struct file *);
static long mraid_mm_unlocked_ioctl(struct file *, uint, unsigned long);
@@ -75,6 +76,7 @@ static const struct file_operations lsi_fops = {
.compat_ioctl = mraid_mm_compat_ioctl,
#endif
.owner = THIS_MODULE,
+ .llseek = noop_llseek,
};
static struct miscdevice megaraid_mm_dev = {
@@ -98,7 +100,6 @@ mraid_mm_open(struct inode *inode, struct file *filep)
*/
if (!capable(CAP_SYS_ADMIN)) return (-EACCES);
- cycle_kernel_lock();
return 0;
}
@@ -224,9 +225,9 @@ mraid_mm_unlocked_ioctl(struct file *filep, unsigned int cmd,
int err;
/* inconsistant: mraid_mm_compat_ioctl doesn't take the BKL */
- lock_kernel();
+ mutex_lock(&mraid_mm_mutex);
err = mraid_mm_ioctl(filep, cmd, arg);
- unlock_kernel();
+ mutex_unlock(&mraid_mm_mutex);
return err;
}