smb: server: make sure we call ib_dma_unmap_single() only if we called ib_dma_map_single already

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[ Upstream commit afb4108c92 ]

In case of failures either ib_dma_map_single() might not be called yet
or ib_dma_unmap_single() was already called.

We should make sure put_recvmsg() only calls ib_dma_unmap_single() if needed.

Cc: Namjae Jeon <linkinjeon@kernel.org>
Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Fixes: 0626e6641f ("cifsd: add server handler for central processing and tranport layers")
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Stefan Metzmacher 2025-08-04 14:15:51 +02:00 • committed by Greg Kroah-Hartman

parent 484dea96e8

commit fb3854e76c

1 changed files with 9 additions and 2 deletions

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fs/ksmbd/transport_rdma.c

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