diff options
author | Wen Yang <wen.yang99@zte.com.cn> | 2019-01-03 01:09:53 +0800 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-02-27 10:09:44 +0100 |
commit | 0962699ef1b00db360529776c9258ef22749e3bb (patch) | |
tree | fe059aa7d45276812da7fa869ed32c7ee0a84357 /include | |
parent | 01cc87321d8638a37e703b84b5f3b6751b39f826 (diff) |
soc/fsl/qe: fix err handling of ucc_of_parse_tdm
[ Upstream commit 8d68100ab4ad92560a16a68b72e068613ac4d573 ]
Currently there are some issues with the ucc_of_parse_tdm function:
1, a possible null pointer dereference in ucc_of_parse_tdm,
detected by the semantic patch deref_null.cocci,
with the following warning:
drivers/soc/fsl/qe/qe_tdm.c:177:21-24: ERROR: pdev is NULL but dereferenced.
2, dev gets modified, so in any case that devm_iounmap() will fail
even when the new pdev is valid, because the iomap was done with a
different pdev.
3, there is no driver bind with the "fsl,t1040-qe-si" or
"fsl,t1040-qe-siram" device. So allocating resources using devm_*()
with these devices won't provide a cleanup path for these resources
when the caller fails.
This patch fixes them.
Suggested-by: Li Yang <leoyang.li@nxp.com>
Suggested-by: Christophe LEROY <christophe.leroy@c-s.fr>
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Reviewed-by: Peng Hao <peng.hao2@zte.com.cn>
CC: Julia Lawall <julia.lawall@lip6.fr>
CC: Zhao Qiang <qiang.zhao@nxp.com>
CC: David S. Miller <davem@davemloft.net>
CC: netdev@vger.kernel.org
CC: linuxppc-dev@lists.ozlabs.org
CC: linux-kernel@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions