[PATCH 2.6.11.2][SECURITY] printk with anti-cluttering-feature

[Bodo Eggert]

Security fix against a log spamming DoS in tuner.c, compile-tested

Signed-Off-By: Bodo Eggert <7eggert@xxxxxx>

--- linux-2.6.11/drivers/media/video/tuner.c	2005-03-20 20:54:54.000000000 +0100
+++ hotfix/drivers/media/video/tuner.c	2005-03-20 21:10:33.000000000 +0100
@@ -1048,8 +1048,9 @@ static void set_tv_freq(struct i2c_clien
 		   right now we don't have that in the config
 		   struct and this way is still better than no
 		   check at all */
-		printk("tuner: TV freq (%d.%02d) out of range (%d-%d)\n",
-		       freq/16,freq%16*100/16,tv_range[0],tv_range[1]);
+		if(printk_ratelimit())
+			printk("tuner: TV freq (%d.%02d) out of range (%d-%d)\n",
+			       freq/16,freq%16*100/16,tv_range[0],tv_range[1]);
 		return;
 	}
 	t->tv_freq(c,freq);
-
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