linux-stable/net/can
Oliver Hartkopp d874cf9799 can: isotp: isotp_sendmsg(): fix return error fix on TX path
commit e38910c007 upstream.

With commit d674a8f123 ("can: isotp: isotp_sendmsg(): fix return
error on FC timeout on TX path") the missing correct return value in
the case of a protocol error was introduced.

But the way the error value has been read and sent to the user space
does not follow the common scheme to clear the error after reading
which is provided by the sock_error() function. This leads to an error
report at the following write() attempt although everything should be
working.

Fixes: d674a8f123 ("can: isotp: isotp_sendmsg(): fix return error on FC timeout on TX path")
Reported-by: Carsten Schmidt <carsten.schmidt-achim@t-online.de>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://lore.kernel.org/all/20230607072708.38809-1-socketcan@hartkopp.net
Cc: stable@vger.kernel.org
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-07-05 18:25:05 +01:00
..
j1939 can: j1939: avoid possible use-after-free when j1939_can_rx_register fails 2023-06-14 11:13:06 +02:00
af_can.c can: af_can: fix NULL pointer dereference in can_rcv_filter 2022-12-14 11:37:22 +01:00
af_can.h can: introduce CAN midlayer private and allocate it automatically 2019-09-04 13:29:14 +02:00
bcm.c can: bcm: bcm_tx_setup(): fix KMSAN uninit-value in vfs_write 2023-04-05 11:24:56 +02:00
gw.c can: gw: synchronize rcu operations before removing gw job entry 2021-06-19 23:53:43 +02:00
isotp.c can: isotp: isotp_sendmsg(): fix return error fix on TX path 2023-07-05 18:25:05 +01:00
Kconfig net: remove redundant 'depends on NET' 2021-01-27 17:04:12 -08:00
Makefile can: add ISO 15765-2:2016 transport protocol 2020-10-07 23:18:33 +02:00
proc.c can: proc: remove unnecessary variables 2021-05-27 09:42:21 +02:00
raw.c net: Remove redundant if statements 2021-08-05 13:27:50 +01:00