[media] r820t: quiet gcc warning on n_ring
authorFengguang Wu <fengguang.wu@intel.com>
Sat, 20 Apr 2013 09:02:16 +0000 (06:02 -0300)
committerMauro Carvalho Chehab <mchehab@redhat.com>
Thu, 25 Apr 2013 13:30:54 +0000 (10:30 -0300)
drivers/media/tuners/r820t.c: In function 'r820t_imr':
 drivers/media/tuners/r820t.c:1871:8: warning: 'n_ring' may be used uninitialized in this function [-Wmaybe-uninitialized]
Mauro: This is a FALSE POSITIVE: the loop will always return a value
for n_ring, as the last test will fill it with 15, if the loop fails.

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
drivers/media/tuners/r820t.c

index 36ddbf1e08b3c070e0b3f7ff380b36bfb83f0518..e6e7a06d2b40dd58ccb9755377ec005bd2268b0b 100644 (file)
@@ -1854,15 +1854,12 @@ static int r820t_imr(struct r820t_priv *priv, unsigned imr_mem, bool im_flag)
        else
                ring_ref = priv->cfg->xtal;
 
+       n_ring = 15;
        for (n = 0; n < 16; n++) {
                if ((16 + n) * 8 * ring_ref >= 3100000) {
                        n_ring = n;
                        break;
                }
-
-               /* n_ring not found */
-               if (n == 15)
-                       n_ring = n;
        }
 
        reg18 = r820t_read_cache_reg(priv, 0x18);