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| author | Akinobu Mita <akinobu.mita@gmail.com> | 2008-07-23 21:28:46 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-24 10:47:24 -0700 |
| commit | ed62f77bb631bc4a2d8acb0521b720cb55e58183 (patch) | |
| tree | 0059c770e8c3264bc93e3bf2dbc09f928cf8b01c /arch/cris/kernel/profile.c | |
| parent | d50004b0867a59f8a81116f000edb352595343d9 (diff) | |
| download | blackbird-op-linux-ed62f77bb631bc4a2d8acb0521b720cb55e58183.tar.gz blackbird-op-linux-ed62f77bb631bc4a2d8acb0521b720cb55e58183.zip | |
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/profile.c')
| -rw-r--r-- | arch/cris/kernel/profile.c | 17 |
1 files changed, 7 insertions, 10 deletions
diff --git a/arch/cris/kernel/profile.c b/arch/cris/kernel/profile.c index 44f7b4f79476..9aa571169bcc 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 |
