misc: fastrpc: Don't reference rpmsg_device after remove
authorBjorn Andersson <bjorn.andersson@linaro.org>
Thu, 29 Aug 2019 09:29:23 +0000 (10:29 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 4 Sep 2019 11:35:10 +0000 (13:35 +0200)
commit2e369878bd4399283f2950dc4947cf44c857dd74
treee8b9e88d4965b37031bcfdf311e24316ddc917ce
parent278d56f970ae6e0bcda8970e78e088e3efe43da8
misc: fastrpc: Don't reference rpmsg_device after remove

As fastrpc_rpmsg_remove() returns the rpdev of the channel context is no
longer a valid object, so ensure to update the channel context to no
longer reference the old object and guard in the invoke code path
against dereferencing it.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Mayank Chopra <mak.chopra@codeaurora.org>
Signed-off-by: Abhinav Asati <asatiabhi@codeaurora.org>
Signed-off-by: Vamsi Singamsetty <vamssi@codeaurora.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20190829092926.12037-3-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/misc/fastrpc.c