Staging: lustre: Remove print statement on function failure

The  memory allocation functions generates a call stack containing
all the context information on failure, so print statements can be
removed on failure of these functions. Also remove
unwanted {} around if block after removal of these statements.
Done using coccinelle:

@@
expression e,e1,e2;
identifier x;
@@
e=\(kmalloc\|kmalloc_array\|kzalloc\|
   devm_kzalloc\)(...);
...when!=e=e1
if(!e)
-{
- \(printk\|DBG_8723A\|pr_err\|CERROR\|DBG_88E\)(...);
(
goto x;
|
return e2;
|
return;
)
-}
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/lustre/libcfs/linux/linux-crypto.c

@@ -251,10 +251,8 @@ static int cfs_crypto_test_hashes(void)
 	unsigned int	    data_len = 1 * 128 * 1024;
 
 	data = kmalloc(data_len, 0);
-	if (!data) {
-		CERROR("Failed to allocate mem\n");
+	if (!data)
 		return -ENOMEM;
-	}
 
 	for (j = 0; j < data_len; j++)
 		data[j] = j & 0xff;

drivers/staging/lustre/lustre/obdclass/llog.c

@@ -365,10 +365,8 @@ int llog_process_or_fork(const struct lu_env *env,
 	int		      rc;
 
 	lpi = kzalloc(sizeof(*lpi), GFP_NOFS);
-	if (!lpi) {
-		CERROR("cannot alloc pointer\n");
+	if (!lpi)
 		return -ENOMEM;
-	}
 	lpi->lpi_loghandle = loghandle;
 	lpi->lpi_cb	= cb;
 	lpi->lpi_cbdata    = data;

drivers/staging/lustre/lustre/obdecho/echo_client.c

@@ -1768,11 +1768,8 @@ static int echo_client_setup(const struct lu_env *env,
 	ec->ec_unique = 0;
 
 	ocd = kzalloc(sizeof(*ocd), GFP_NOFS);
-	if (!ocd) {
-		CERROR("Can't alloc ocd connecting to %s\n",
-		       lustre_cfg_string(lcfg, 1));
+	if (!ocd)
 		return -ENOMEM;
-	}
 
 	ocd->ocd_connect_flags = OBD_CONNECT_VERSION | OBD_CONNECT_REQPORTAL |
 				 OBD_CONNECT_BRW_SIZE |