proc: copy_to_user() returns unsigned
copy_to_user() returns the number of bytes left to be copied.
This was a typo from: d82ef020cf31 "proc: pagemap: Hold mmap_sem during
page walk".
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index caf0337..a05a669 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -800,7 +800,7 @@
start_vaddr = end;
len = min(count, PM_ENTRY_BYTES * pm.pos);
- if (copy_to_user(buf, pm.buffer, len) < 0) {
+ if (copy_to_user(buf, pm.buffer, len)) {
ret = -EFAULT;
goto out_free;
}