| Message ID | 20241218023614.2968024-1-make_ruc2021@163.com (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | a3cbf68c69611188cd304229e346bffdabfd4277 |
| Headers | show |
| Series | [v3] RDMA/srp: Fix error handling in srp_add_port | expand |
> If device_add() fails, call only put_device() to decrement reference > count for cleanup. Do not call device_del() before put_device(). … > Found by code review. Are you looking for possibilities to improve automated source code analyses accordingly? Regards, Markus
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c index 2916e77f589b..7289ae0b83ac 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.c +++ b/drivers/infiniband/ulp/srp/ib_srp.c @@ -3978,7 +3978,6 @@ static struct srp_host *srp_add_port(struct srp_device *device, u32 port) return host; put_host: - device_del(&host->dev); put_device(&host->dev); return NULL; }
If device_add() fails, call only put_device() to decrement reference count for cleanup. Do not call device_del() before put_device(). As comment of device_add() says, 'if device_add() succeeds, you should call device_del() when you want to get rid of it. If device_add() has not succeeded, use only put_device() to drop the reference count'. Found by code review. Cc: stable@vger.kernel.org Fixes: c8e4c2397655 ("RDMA/srp: Rework the srp_add_port() error path") Signed-off-by: Ma Ke <make_ruc2021@163.com> --- Changes in v3: - modified the bug description as suggestions; - added a blank line to separate the description and the tags. Changes in v2: - modified the bug description as suggestions. --- drivers/infiniband/ulp/srp/ib_srp.c | 1 - 1 file changed, 1 deletion(-)