drivers/char/synclink.c: check kmalloc() return value

Signed-off-by: NAmit Choudhary <amit2030@gmail.com>
Cc: Paul Fulghum <paulkf@microgate.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

drivers/char/synclink.c

@@ -4010,8 +4010,13 @@ static int mgsl_alloc_intermediate_txbuffer_memory(struct mgsl_struct *info)
 	for ( i=0; i<info->num_tx_holding_buffers; ++i) {
 		info->tx_holding_buffers[i].buffer =
 			kmalloc(info->max_frame_size, GFP_KERNEL);
-		if ( info->tx_holding_buffers[i].buffer == NULL )
+		if (info->tx_holding_buffers[i].buffer == NULL) {
+			for (--i; i >= 0; i--) {
+				kfree(info->tx_holding_buffers[i].buffer);
+				info->tx_holding_buffers[i].buffer = NULL;
+			}
 			return -ENOMEM;
+		}
 	}
 
 	return 0;