staging: echo: remove unused variable

the variable j isn't used in the loop

Signed-off-by: Cong Ding <dinggnu@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/echo/echo.c b/drivers/staging/echo/echo.c
index ca87ce9874b1986c89570db3a0ef941c2c9a3406..14dfd91ab5d2335e808debdf82cbc840d695fb6d 100644 (file)
--- a/drivers/staging/echo/echo.c
+++ b/drivers/staging/echo/echo.c
@@ -119,7 +119,6 @@
 static inline void lms_adapt_bg(struct oslec_state *ec, int clean, int shift)
 {
        int i;
-       int j;
        int offset1;
        int offset2;
        int factor;
@@ -142,7 +141,7 @@ static inline void lms_adapt_bg(struct oslec_state *ec, int clean, int shift)
 
        /* asm("st:"); */
        n = ec->taps;
-       for (i = 0, j = offset2; i < n; i++, j++) {
+       for (i = 0; i < n; i++) {
                exp = *phist++ * factor;
                ec->fir_taps16[1][i] += (int16_t) ((exp + (1 << 14)) >> 15);
        }