SUNRPC: Make spkm3 report unsupported encryption types

 Print messages when an unsupported encrytion algorthm is requested or
 there is an error locating a supported algorthm.
Signed-off-by: Kevin Coffman <kwc@citi.umich.edu>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

net/sunrpc/auth_gss/gss_spkm3_mech.c

@@ -111,15 +111,19 @@ get_key(const void *p, const void *end, struct crypto_tfm **res, int *resalg)
 			setkey = 0;
 			break;
 		default:
-			dprintk("RPC: SPKM3 get_key: unsupported algorithm %d", *resalg);
+			dprintk("gss_spkm3_mech: unsupported algorithm %d\n", *resalg);
 			goto out_err_free_key;
 	}
-	if (!(*res = crypto_alloc_tfm(alg_name, alg_mode)))
+	if (!(*res = crypto_alloc_tfm(alg_name, alg_mode))) {
+		printk("gss_spkm3_mech: unable to initialize crypto algorthm %s\n", alg_name);
 		goto out_err_free_key;
+	}
 	if (setkey) {
-		if (crypto_cipher_setkey(*res, key.data, key.len))
+		if (crypto_cipher_setkey(*res, key.data, key.len)) {
+			printk("gss_spkm3_mech: error setting key for crypto algorthm %s\n", alg_name);
 			goto out_err_free_tfm;
 		}
+	}
 
 	if(key.len > 0)
 		kfree(key.data);