On 2021/3/23 21:57, Greg KH wrote:
On Fri, Mar 05, 2021 at 02:24:05AM -0800, Jia-Ju Bai wrote:
When device_create_file() fails and returns a non-zero value,
no error return code of driver_sysfs_add() is assigned.
To fix this bug, ret is assigned with the return value of
device_create_file(), and then ret is checked.
Reported-by: TOTE Robot <os...@tsinghua.edu.cn>
Signed-off-by: Jia-Ju Bai <baijiaju1...@gmail.com>
---
drivers/base/dd.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index 9179825ff646..f94bbef95258 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -413,8 +413,11 @@ static int driver_sysfs_add(struct device *dev)
if (ret)
goto rm_dev;
- if (!IS_ENABLED(CONFIG_DEV_COREDUMP) || !dev->driver->coredump ||
- !device_create_file(dev, &dev_attr_coredump))
+ if (!IS_ENABLED(CONFIG_DEV_COREDUMP) || !dev->driver->coredump)
+ return 0;
+
Trailing whitespace :
Ah, sorry, I will send a V2 patch.
Best wishes,
Jia-Ju Bai
