copy_to_user() returns nonzero value on error, this value may be any
value between 0 and requested count, not only requested count.
Signed-off-by: Kulikov Vasiliy <segooon@xxxxxxxxx>
---
fs/nfs/idmap.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/fs/nfs/idmap.c b/fs/nfs/idmap.c
index 21a84d4..a9f2cd5 100644
--- a/fs/nfs/idmap.c
+++ b/fs/nfs/idmap.c
@@ -362,7 +362,7 @@ idmap_pipe_upcall(struct file *filp, struct rpc_pipe_msg *msg,
unsigned long left;
left = copy_to_user(dst, data, mlen);
- if (left == mlen) {
+ if (left)
msg->errno = -EFAULT;
return -EFAULT;
}
--
1.7.0.4
--
To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
