aboutsummaryrefslogtreecommitdiff
path: root/arch/cris/kernel
diff options
context:
space:
mode:
authorAkinobu Mita <akinobu.mita@gmail.com>2008-07-23 21:28:46 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-24 10:47:24 -0700
commited62f77bb631bc4a2d8acb0521b720cb55e58183 (patch)
tree0059c770e8c3264bc93e3bf2dbc09f928cf8b01c /arch/cris/kernel
parentd50004b0867a59f8a81116f000edb352595343d9 (diff)
downloadvexpress-lsk-ed62f77bb631bc4a2d8acb0521b720cb55e58183.tar.gz
cris: use simple_read_from_buffer()
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/cris/kernel')
-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 44f7b4f7947..9aa571169bc 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