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Merge branch 'bkl-removal' into next
[pandora-kernel.git]
/
arch
/
mips
/
sibyte
/
common
/
sb_tbprof.c
diff --git
a/arch/mips/sibyte/common/sb_tbprof.c
b/arch/mips/sibyte/common/sb_tbprof.c
index
4fcdaa8
..
28b012a
100644
(file)
--- a/
arch/mips/sibyte/common/sb_tbprof.c
+++ b/
arch/mips/sibyte/common/sb_tbprof.c
@@
-28,6
+28,7
@@
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/slab.h>
+#include <linux/smp_lock.h>
#include <linux/vmalloc.h>
#include <linux/fs.h>
#include <linux/errno.h>
#include <linux/vmalloc.h>
#include <linux/fs.h>
#include <linux/errno.h>
@@
-276,8
+277,8
@@
static int sbprof_zbprof_start(struct file *filp)
sbp.next_tb_sample = 0;
filp->f_pos = 0;
sbp.next_tb_sample = 0;
filp->f_pos = 0;
- err = request_irq
(K_INT_TRACE_FREEZE, sbprof_tb_intr, 0,
-
DEVNAME " trace freeze", &sbp);
+ err = request_irq(K_INT_TRACE_FREEZE, sbprof_tb_intr, 0,
+ DEVNAME " trace freeze", &sbp);
if (err)
return -EBUSY;
if (err)
return -EBUSY;
@@
-402,18
+403,26
@@
static int sbprof_zbprof_stop(void)
static int sbprof_tb_open(struct inode *inode, struct file *filp)
{
int minor;
static int sbprof_tb_open(struct inode *inode, struct file *filp)
{
int minor;
+ int err = 0;
+ lock_kernel();
minor = iminor(inode);
minor = iminor(inode);
- if (minor != 0)
- return -ENODEV;
+ if (minor != 0) {
+ err = -ENODEV;
+ goto out;
+ }
- if (xchg(&sbp.open, SB_OPENING) != SB_CLOSED)
- return -EBUSY;
+ if (xchg(&sbp.open, SB_OPENING) != SB_CLOSED) {
+ err = -EBUSY;
+ goto out;
+ }
memset(&sbp, 0, sizeof(struct sbprof_tb));
sbp.sbprof_tbbuf = vmalloc(MAX_TBSAMPLE_BYTES);
memset(&sbp, 0, sizeof(struct sbprof_tb));
sbp.sbprof_tbbuf = vmalloc(MAX_TBSAMPLE_BYTES);
- if (!sbp.sbprof_tbbuf)
- return -ENOMEM;
+ if (!sbp.sbprof_tbbuf) {
+ err = -ENOMEM;
+ goto out;
+ }
memset(sbp.sbprof_tbbuf, 0, MAX_TBSAMPLE_BYTES);
init_waitqueue_head(&sbp.tb_sync);
init_waitqueue_head(&sbp.tb_read);
memset(sbp.sbprof_tbbuf, 0, MAX_TBSAMPLE_BYTES);
init_waitqueue_head(&sbp.tb_sync);
init_waitqueue_head(&sbp.tb_read);
@@
-421,7
+430,9
@@
static int sbprof_tb_open(struct inode *inode, struct file *filp)
sbp.open = SB_OPEN;
sbp.open = SB_OPEN;
- return 0;
+ out:
+ unlock_kernel();
+ return err;
}
static int sbprof_tb_release(struct inode *inode, struct file *filp)
}
static int sbprof_tb_release(struct inode *inode, struct file *filp)