mlx5: Return -EFAULT instead of -EPERM
For copy_to/from_user() failure, the correct error code is -EFAULT not
-EPERM.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c
index e2daa8f..bd41df9 100644
--- a/drivers/infiniband/hw/mlx5/mr.c
+++ b/drivers/infiniband/hw/mlx5/mr.c
@@ -171,7 +171,7 @@
int c;
if (copy_from_user(lbuf, buf, sizeof(lbuf)))
- return -EPERM;
+ return -EFAULT;
c = order2idx(dev, ent->order);
lbuf[sizeof(lbuf) - 1] = 0;
@@ -208,7 +208,7 @@
return err;
if (copy_to_user(buf, lbuf, err))
- return -EPERM;
+ return -EFAULT;
*pos += err;
@@ -233,7 +233,7 @@
int c;
if (copy_from_user(lbuf, buf, sizeof(lbuf)))
- return -EPERM;
+ return -EFAULT;
c = order2idx(dev, ent->order);
lbuf[sizeof(lbuf) - 1] = 0;
@@ -270,7 +270,7 @@
return err;
if (copy_to_user(buf, lbuf, err))
- return -EPERM;
+ return -EFAULT;
*pos += err;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
index c1c0eef..205753a 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
@@ -693,7 +693,7 @@
return -ENOMEM;
if (copy_from_user(lbuf, buf, sizeof(lbuf)))
- return -EPERM;
+ return -EFAULT;
lbuf[sizeof(lbuf) - 1] = 0;
@@ -889,7 +889,7 @@
return -ENOMEM;
if (copy_from_user(ptr, buf, count)) {
- err = -EPERM;
+ err = -EFAULT;
goto out;
}
dbg->in_msg = ptr;
@@ -919,7 +919,7 @@
copy = min_t(int, count, dbg->outlen);
if (copy_to_user(buf, dbg->out_msg, copy))
- return -EPERM;
+ return -EFAULT;
*pos += copy;
@@ -949,7 +949,7 @@
return err;
if (copy_to_user(buf, &outlen, err))
- return -EPERM;
+ return -EFAULT;
*pos += err;
@@ -974,7 +974,7 @@
dbg->outlen = 0;
if (copy_from_user(outlen_str, buf, count))
- return -EPERM;
+ return -EFAULT;
outlen_str[7] = 0;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c b/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c
index a550a8e..4273c06 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c
@@ -148,7 +148,6 @@
struct mlx5_cmd_stats *stats;
u64 field = 0;
int ret;
- int err;
char tbuf[22];
if (*pos)
@@ -161,9 +160,8 @@
spin_unlock(&stats->lock);
ret = snprintf(tbuf, sizeof(tbuf), "%llu\n", field);
if (ret > 0) {
- err = copy_to_user(buf, tbuf, ret);
- if (err)
- return err;
+ if (copy_to_user(buf, tbuf, ret))
+ return -EFAULT;
}
*pos += ret;
@@ -418,7 +416,6 @@
char tbuf[18];
u64 field;
int ret;
- int err;
if (*pos)
return 0;
@@ -445,9 +442,8 @@
ret = snprintf(tbuf, sizeof(tbuf), "0x%llx\n", field);
if (ret > 0) {
- err = copy_to_user(buf, tbuf, ret);
- if (err)
- return err;
+ if (copy_to_user(buf, tbuf, ret))
+ return -EFAULT;
}
*pos += ret;