---

yaml --- r: 271742 b: refs/heads/master c: f8a26f0 h: refs/heads/master v: v3
git-mirror · Sep 4, 2011 · 76c95e3 · 76c95e3
1 parent 99b7ecb
commit 76c95e3
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Showing 2 changed files with 10 additions and 5 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 133a9fe949862d9ed8411fb423739f4cee08232d
+refs/heads/master: f8a26f052a5f62c7555d09680c1fe8cbfcac590f
diff --git a/trunk/drivers/media/dvb/frontends/drxd_hard.c b/trunk/drivers/media/dvb/frontends/drxd_hard.c
@@ -889,10 +889,15 @@ static int ReadIFAgc(struct drxd_state *state, u32 * pValue)
 			u32 R2 = state->if_agc_cfg.R2;
 			u32 R3 = state->if_agc_cfg.R3;
 
-			u32 Vmax = (3300 * R2) / (R1 + R2);
-			u32 Rpar = (R2 * R3) / (R3 + R2);
-			u32 Vmin = (3300 * Rpar) / (R1 + Rpar);
-			u32 Vout = Vmin + ((Vmax - Vmin) * Value) / 1024;
+			u32 Vmax, Rpar, Vmin, Vout;
+
+			if (R2 == 0 && (R1 == 0 || R3 == 0))
+				return 0;
+
+			Vmax = (3300 * R2) / (R1 + R2);
+			Rpar = (R2 * R3) / (R3 + R2);
+			Vmin = (3300 * Rpar) / (R1 + Rpar);
+			Vout = Vmin + ((Vmax - Vmin) * Value) / 1024;
 
 			*pValue = Vout;
 		}