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

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

diff --git a/drivers/char/synclink.c b/drivers/char/synclink.c
index ce4db6f..f02a079 100644 (file)
--- a/drivers/char/synclink.c
+++ b/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;