iwlwifi: dbg_ini: fix memory leak in alloc_sgtable

Navidem · lucacoelho · commit b4b814fec1a5 · 2019-10-09T13:01:06.000+03:00
In alloc_sgtable if alloc_page fails, the alocated table should be
released.

Signed-off-by: Navid Emamdoost &lt;navid.emamdoost@gmail.com&gt;
Signed-off-by: Luca Coelho &lt;luciano.coelho@intel.com&gt;
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
@@ -646,6 +646,7 @@ 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);

Original file line number	Diff line number	Diff line change
`@@ -646,6 +646,7 @@ static struct scatterlist *alloc_sgtable(int size)`
`646`	`646`	`if (new_page)`
`647`	`647`	`__free_page(new_page);`
`648`	`648`	`}`
	`649`	`+ kfree(table);`
`649`	`650`	`return NULL;`
`650`	`651`	`}`
`651`	`652`	`alloc_size = min_t(int, size, PAGE_SIZE);`