iwlwifi: dbg_ini: fix memory leak in alloc_sgtable

commit b4b814fec1a5a849383f7b3886b654a13abbda7d upstream.

In alloc_sgtable if alloc_page fails, the alocated table should be
released.

Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
index 3443cbd..d6fca00 100644 (file)
--- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
@@ -547,6 +547,7 @@ static struct scatterlist *alloc_sgtable(int size)
                                if (new_page)
                                        __free_page(new_page);
                        }
+                       kfree(table);
                        return NULL;
                }
                alloc_size = min_t(int, size, PAGE_SIZE);