提交 064b022c 编写于 作者: H Heiko Carstens 提交者: Linus Torvalds

[PATCH] profile: fix uaccess handling

Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
上级 7116e994
...@@ -442,7 +442,8 @@ read_profile(struct file *file, char __user *buf, size_t count, loff_t *ppos) ...@@ -442,7 +442,8 @@ read_profile(struct file *file, char __user *buf, size_t count, loff_t *ppos)
read = 0; read = 0;
while (p < sizeof(unsigned int) && count > 0) { while (p < sizeof(unsigned int) && count > 0) {
put_user(*((char *)(&sample_step)+p),buf); if (put_user(*((char *)(&sample_step)+p),buf))
return -EFAULT;
buf++; p++; count--; read++; buf++; p++; count--; read++;
} }
pnt = (char *)prof_buffer + p - sizeof(atomic_t); pnt = (char *)prof_buffer + p - sizeof(atomic_t);
......
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