1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/net/wimax/i2400m/usb-fw.c b/drivers/net/wimax/i2400m/usb-fw.c
index a2250e49a444..f162c815d505 100644
--- a/drivers/net/wimax/i2400m/usb-fw.c
+++ b/drivers/net/wimax/i2400m/usb-fw.c
@@ -172,7 +172,8 @@ ssize_t i2400mu_bus_bm_cmd_send(struct i2400m *i2400m,
         result = -E2BIG;
         if (cmd_size > I2400M_BM_CMD_BUF_SIZE)
                 goto error_too_big;
-        memcpy(i2400m->bm_cmd_buf, _cmd, cmd_size);
+        if (_cmd != i2400m->bm_cmd_buf)
+                memmove(i2400m->bm_cmd_buf, _cmd, cmd_size);
         cmd = i2400m->bm_cmd_buf;
         if (cmd_size_a > cmd_size)                      /* Zero pad space */
                 memset(i2400m->bm_cmd_buf + cmd_size, 0, cmd_size_a - cmd_size);