* [PATCH] fpga: bridge: Fix possible memory leak in fpga_bridge_register()
@ 2023-09-28 9:58 Jinjie Ruan
0 siblings, 0 replies; only message in thread
From: Jinjie Ruan @ 2023-09-28 9:58 UTC (permalink / raw)
To: linux-fpga, linux-kernel, Moritz Fischer, Wu Hao, Xu Yilun,
Tom Rix, Russ Weight
Cc: ruanjinjie
If device_register() fails in fpga_bridge_register(), the bridge
allocated by kzalloc() and the id allocated by ida_alloc() also need be
freed otherwise will cause memory leak.
Fixes: 0d70af3c2530 ("fpga: bridge: Use standard dev_release for class driver")
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
---
drivers/fpga/fpga-bridge.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/fpga/fpga-bridge.c b/drivers/fpga/fpga-bridge.c
index a024be2b84e2..4a298656ce77 100644
--- a/drivers/fpga/fpga-bridge.c
+++ b/drivers/fpga/fpga-bridge.c
@@ -370,15 +370,15 @@ fpga_bridge_register(struct device *parent, const char *name,
goto error_device;
ret = device_register(&bridge->dev);
- if (ret) {
- put_device(&bridge->dev);
- return ERR_PTR(ret);
- }
+ if (ret)
+ goto error_put_device;
of_platform_populate(bridge->dev.of_node, NULL, NULL, &bridge->dev);
return bridge;
+error_put_device:
+ put_device(&bridge->dev);
error_device:
ida_free(&fpga_bridge_ida, id);
error_kfree:
--
2.34.1
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2023-09-28 9:58 [PATCH] fpga: bridge: Fix possible memory leak in fpga_bridge_register() Jinjie Ruan
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