1 files changed, 1 insertions, 1 deletions
diff --git a/libavutil/rc4.c b/libavutil/rc4.c
index 6bd702c495..ffcb112142 100644
--- a/libavutil/rc4.c
+++ b/libavutil/rc4.c
@@ -36,7 +36,7 @@ int av_rc4_init(AVRC4 *r, const uint8_t *key, int key_bits, int decrypt) {
     uint8_t *state = r->state;
     int keylen = key_bits >> 3;
     if (key_bits & 7)
-        return -1;
+        return AVERROR(EINVAL);
     for (i = 0; i < 256; i++)
         state[i] = i;
     y = 0;