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-rw-r--r--arch/cris/kernel/profile.c17
1 files changed, 7 insertions, 10 deletions
diff --git a/arch/cris/kernel/profile.c b/arch/cris/kernel/profile.c
index 44f7b4f..9aa5711 100644
--- a/arch/cris/kernel/profile.c
+++ b/arch/cris/kernel/profile.c
@@ -35,19 +35,16 @@ read_cris_profile(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
{
unsigned long p = *ppos;
+ ssize_t ret;
- if (p > SAMPLE_BUFFER_SIZE)
- return 0;
+ ret = simple_read_from_buffer(buf, count, ppos, sample_buffer,
+ SAMPLE_BUFFER_SIZE);
+ if (ret < 0)
+ return ret;
- if (p + count > SAMPLE_BUFFER_SIZE)
- count = SAMPLE_BUFFER_SIZE - p;
- if (copy_to_user(buf, sample_buffer + p,count))
- return -EFAULT;
+ memset(sample_buffer + p, 0, ret);
- memset(sample_buffer + p, 0, count);
- *ppos += count;
-
- return count;
+ return ret;
}
static ssize_t
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