diff options
Diffstat (limited to 'drivers/oprofile/oprofilefs.c')
-rw-r--r-- | drivers/oprofile/oprofilefs.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/oprofile/oprofilefs.c b/drivers/oprofile/oprofilefs.c index 6e67b42ca46..8543cb26cf3 100644 --- a/drivers/oprofile/oprofilefs.c +++ b/drivers/oprofile/oprofilefs.c | |||
@@ -65,6 +65,7 @@ ssize_t oprofilefs_ulong_to_user(unsigned long val, char __user * buf, size_t co | |||
65 | int oprofilefs_ulong_from_user(unsigned long * val, char const __user * buf, size_t count) | 65 | int oprofilefs_ulong_from_user(unsigned long * val, char const __user * buf, size_t count) |
66 | { | 66 | { |
67 | char tmpbuf[TMPBUFSIZE]; | 67 | char tmpbuf[TMPBUFSIZE]; |
68 | unsigned long flags; | ||
68 | 69 | ||
69 | if (!count) | 70 | if (!count) |
70 | return 0; | 71 | return 0; |
@@ -77,9 +78,9 @@ int oprofilefs_ulong_from_user(unsigned long * val, char const __user * buf, siz | |||
77 | if (copy_from_user(tmpbuf, buf, count)) | 78 | if (copy_from_user(tmpbuf, buf, count)) |
78 | return -EFAULT; | 79 | return -EFAULT; |
79 | 80 | ||
80 | spin_lock(&oprofilefs_lock); | 81 | spin_lock_irqsave(&oprofilefs_lock, flags); |
81 | *val = simple_strtoul(tmpbuf, NULL, 0); | 82 | *val = simple_strtoul(tmpbuf, NULL, 0); |
82 | spin_unlock(&oprofilefs_lock); | 83 | spin_unlock_irqrestore(&oprofilefs_lock, flags); |
83 | return 0; | 84 | return 0; |
84 | } | 85 | } |
85 | 86 | ||