diff options
author | Peter Huewe <peterhuewe@gmx.de> | 2011-06-07 21:58:27 +0200 |
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committer | Steven Rostedt <rostedt@goodmis.org> | 2011-06-14 22:48:50 -0400 |
commit | 22fe9b54d859e53bfbbbdc1a0a77a82bc453927c (patch) | |
tree | 4aec2d069decbe0786ad5474908f5bbe49732ad4 /kernel/trace/ftrace.c | |
parent | 749230b06a753a22f6ed96e5dd60815d6ab12865 (diff) |
tracing: Convert to kstrtoul_from_user
This patch replaces the code for getting an unsigned long from a
userspace buffer by a simple call to kstroul_from_user.
This makes it easier to read and less error prone.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Link: http://lkml.kernel.org/r/1307476707-14762-1-git-send-email-peterhuewe@gmx.de
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/ftrace.c')
-rw-r--r-- | kernel/trace/ftrace.c | 13 |
1 files changed, 2 insertions, 11 deletions
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index e1538071660..458018a1ac9 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -803,19 +803,10 @@ ftrace_profile_write(struct file *filp, const char __user *ubuf, size_t cnt, loff_t *ppos) { unsigned long val; - char buf[64]; /* big enough to hold a number */ int ret; - if (cnt >= sizeof(buf)) - return -EINVAL; - - if (copy_from_user(&buf, ubuf, cnt)) - return -EFAULT; - - buf[cnt] = 0; - - ret = strict_strtoul(buf, 10, &val); - if (ret < 0) + ret = kstrtoul_from_user(ubuf, cnt, 10, &val); + if (ret) return ret; val = !!val; |