Messages in this thread | | | Date | Fri, 04 Jan 2019 12:51:16 -0800 (PST) | Subject | Re: [RESEND PATCH v5] soc/fsl/qe: fix err handling of ucc_of_parse_tdm | From | David Miller <> |
| |
From: Peng Hao <peng.hao2@zte.com.cn> Date: Thu, 3 Jan 2019 01:09:53 +0800
> From: Wen Yang <wen.yang99@zte.com.cn> > > 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>
Applied, thanks.
| |