control_hw: fix potential memory leak

Signed-off-by: Ivan Sorokin <vanyacpp@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/src/control/control_hw.c b/src/control/control_hw.c
index 148097f..dfc9dcd 100644 (file)
--- a/src/control/control_hw.c
+++ b/src/control/control_hw.c
@@ -240,8 +240,10 @@ static int snd_ctl_hw_elem_tlv(snd_ctl_t *handle, int op_flag,
                return -errno;
        }
        if (op_flag == 0) {
-               if (xtlv->tlv[1] + 2 * sizeof(unsigned int) > tlv_size)
+               if (xtlv->tlv[1] + 2 * sizeof(unsigned int) > tlv_size) {
+                       free(xtlv);
                        return -EFAULT;
+               }
                memcpy(tlv, xtlv->tlv, xtlv->tlv[1] + 2 * sizeof(unsigned int));
        }
        free(xtlv);