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RDMA/srp: Fix error handling in srp_add_port

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BugLink: https://bugs.launchpad.net/bugs/2111953

[ Upstream commit a3cbf68c69611188cd304229e346bffdabfd4277 ]

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.

Add a put_device() call before returning from the function to decrement
reference count for cleanup.

Found by code review.

Fixes: c8e4c23976 ("RDMA/srp: Rework the srp_add_port() error path")
Signed-off-by: Ma Ke <make_ruc2021@163.com>
Link: https://patch.msgid.link/20241217075538.2909996-1-make_ruc2021@163.com
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Manuel Diewald <manuel.diewald@canonical.com>
Signed-off-by: Mehmet Basaran <mehmet.basaran@canonical.com>
This commit is contained in:
Ma Ke
2024-12-17 15:55:38 +08:00
committed by Mehmet Basaran
parent 178510d060
commit e4e02c2642
1 changed files with 0 additions and 1 deletions
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drivers/infiniband/ulp/srp/ib_srp.c
-1
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@@ -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;
}