linux/drivers/soc/fsl
Wen Yang 8d68100ab4 soc/fsl/qe: fix err handling of ucc_of_parse_tdm
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>
2019-01-04 12:50:43 -08:00
..
dpio soc: fsl: dpio: Add BP and FQ query APIs 2018-12-19 10:37:22 -08:00
qbman soc/qman: add return value to interrupt coalesce changing APIs 2018-11-23 11:17:06 -08:00
qe soc/fsl/qe: fix err handling of ucc_of_parse_tdm 2019-01-04 12:50:43 -08:00
guts.c soc: fsl: guts: Add a NULL check for devm_kasprintf() 2018-01-22 16:59:48 -06:00
Kconfig soc: fsl: cleanup Kconfig menu 2018-07-24 16:19:16 -05:00
Makefile staging: fsl-mc: Move DPIO from staging to drivers/soc/fsl 2018-07-24 16:18:55 -05:00