diff mbox series

[v1,3/5] dmaengine: idxd: fix memory leak in error handling path of idxd_setup_groups

Message ID 20250110082237.21135-4-xueshuai@linux.alibaba.com (mailing list archive)
State New
Headers show
Series dmaengine: idxd: fix memory leak in error handling path | expand

Commit Message

Shuai Xue Jan. 10, 2025, 8:22 a.m. UTC 
Memory allocated for groups is not freed if an error occurs during
idxd_setup_groups(). To fix it, free the allocated memory in the reverse
order of allocation before exiting the function in case of an error.

Signed-off-by: Shuai Xue <xueshuai@linux.alibaba.com>
---
 drivers/dma/idxd/init.c | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox series

Patch

diff --git a/drivers/dma/idxd/init.c b/drivers/dma/idxd/init.c
index 12df895dcbe9..04a7d7706e53 100644
--- a/drivers/dma/idxd/init.c
+++ b/drivers/dma/idxd/init.c
@@ -326,6 +326,7 @@  static int idxd_setup_groups(struct idxd_device *idxd)
 		rc = dev_set_name(conf_dev, "group%d.%d", idxd->id, group->id);
 		if (rc < 0) {
 			put_device(conf_dev);
+			kfree(group);
 			goto err;
 		}
 
@@ -350,7 +351,10 @@  static int idxd_setup_groups(struct idxd_device *idxd)
 	while (--i >= 0) {
 		group = idxd->groups[i];
 		put_device(group_confdev(group));
+		kfree(group);
 	}
+	kfree(idxd->groups);
+
 	return rc;
 }