usb: core: hcd: Fix return value check in usb_hcd_setup_local_mem()
authorYang Yingliang <yangyingliang@huawei.com>
Fri, 25 Nov 2022 06:41:20 +0000 (14:41 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 31 Dec 2022 12:32:41 +0000 (13:32 +0100)
commit6fe1adeabc2a215833d2ed94b35c2dafc6ca7876
tree7dbc8b8c7e0488a9278b846aa6ce4d93717c5db9
parentb3862858b67821cf51919d895552d5a2a2e83213
usb: core: hcd: Fix return value check in usb_hcd_setup_local_mem()

[ Upstream commit 3c347cdafa3db43337870006e5c2d7b78a8dae20 ]

If dmam_alloc_attrs() fails, it returns NULL pointer and never
return ERR_PTR(), so repleace IS_ERR() with IS_ERR_OR_NULL()
and if it's NULL, returns -ENOMEM.

Fixes: 9ba26f5cecd8 ("ARM: sa1100/assabet: move dmabounce hack to ohci driver")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20221125064120.2842452-1-yangyingliang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/usb/core/hcd.c