Merge tag 'writeback' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux

[pandora-kernel.git] / drivers / oprofile / oprofile_files.c

diff --git a/drivers/oprofile/oprofile_files.c b/drivers/oprofile/oprofile_files.c
index 89f6345..84a208d 100644 (file)
--- a/drivers/oprofile/oprofile_files.c
+++ b/drivers/oprofile/oprofile_files.c
@@ -45,7 +45,7 @@ static ssize_t timeout_write(struct file *file, char const __user *buf,
                return -EINVAL;
 
        retval = oprofilefs_ulong_from_user(&val, buf, count);
-       if (retval)
+       if (retval <= 0)
                return retval;
 
        retval = oprofile_set_timeout(val);
@@ -84,7 +84,7 @@ static ssize_t depth_write(struct file *file, char const __user *buf, size_t cou
                return -EINVAL;
 
        retval = oprofilefs_ulong_from_user(&val, buf, count);
-       if (retval)
+       if (retval <= 0)
                return retval;
 
        retval = oprofile_set_ulong(&oprofile_backtrace_depth, val);
@@ -141,9 +141,10 @@ static ssize_t enable_write(struct file *file, char const __user *buf, size_t co
                return -EINVAL;
 
        retval = oprofilefs_ulong_from_user(&val, buf, count);
-       if (retval)
+       if (retval <= 0)
                return retval;
 
+       retval = 0;
        if (val)
                retval = oprofile_start();
        else