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(parent: 24d992b) | patch
xen/pciback: Check dev_data before using it
authorRoss Lagerwall <ross.lagerwall@citrix.com>
Fri, 14 Dec 2018 12:55:45 +0000 (12:55 +0000)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 5 Dec 2019 08:20:26 +0000 (09:20 +0100)
commit73c1ca2dda37a65d4ef218551a39794658a0ef2c
treee97a1c8d9c2b24f4bc5aac7fa6196dbdb75c1723tree | snapshot
parent24d992bcaa5ac8f2f28e62f54d8db504b24ed0c1commit | diff
xen/pciback: Check dev_data before using it

[ Upstream commit 1669907e3d1abfa3f7586e2d55dbbc117b5adba2 ]

If pcistub_init_device fails, the release function will be called with
dev_data set to NULL.  Check it before using it to avoid a NULL pointer
dereference.

Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/xen/xen-pciback/pci_stub.c diff | blob | history
Domain: System / Kernel;