z2ram: fix a memory leak in z2_open()

[PATCH] z2ram: fix a memory leak in z2_open()

Haoxiang Li posted 1 patch 1 week, 5 days ago

Download mbox

drivers/block/z2ram.c | 2 ++
1 file changed, 2 insertions(+)

Expand all Fold all

[PATCH] z2ram: fix a memory leak in z2_open()

Posted by Haoxiang Li 1 week, 5 days ago

Add iounmap to release the memory if kmalloc_array()
fails in z2_open().

Signed-off-by: Haoxiang Li <lihaoxiang@isrc.iscas.ac.cn>
---
 drivers/block/z2ram.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/block/z2ram.c b/drivers/block/z2ram.c
index 8c1c7f4211eb..1a38a927b8e0 100644
--- a/drivers/block/z2ram.c
+++ b/drivers/block/z2ram.c
@@ -192,6 +192,8 @@ static int z2_open(struct gendisk *disk, blk_mode_t mode)
 			if (z2ram_map == NULL) {
 				printk(KERN_ERR DEVICE_NAME
 				       ": cannot get mem for z2ram_map\n");
+				if (vaddr)
+					iounmap((void *)vaddr);
 				goto err_out;
 			}
 
-- 
2.25.1