AuxXxilium/linux_dsm_epyc7002
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d763ab3044
linux_dsm_epyc7002/drivers/net/can
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Marc Kleine-Budde d763ab3044 can: rx-offload: can_rx_offload_offload_one(): use ERR_PTR() to propagate error value in case of errors 
Before this patch can_rx_offload_offload_one() returns a pointer to a
skb containing the read CAN frame or a NULL pointer.

However the meaning of the NULL pointer is ambiguous, it can either mean
the requested mailbox is empty or there was an error.

This patch fixes this situation by returning:
- pointer to skb on success
- NULL pointer if mailbox is empty
- ERR_PTR() in case of an error

All users of can_rx_offload_offload_one() have been adopted, no
functional change intended.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-11-04 21:47:22 +01:00
..
c_can can: c_can: C_CAN: add bus recovery events 2019-11-04 21:47:21 +01:00
cc770 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 495 2019-06-19 17:09:52 +02:00
ifi_canfd treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
m_can can: tcan4x5x: Remove checking the wake pin 2019-09-03 10:23:57 +02:00
mscan treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 344 2019-06-05 17:37:07 +02:00
peak_canfd can: mark expected switch fall-throughs 2019-07-25 20:09:42 -05:00
rcar can: rcar_can: Remove unused platform data support 2019-08-20 13:41:25 +02:00
sja1000 can: peak_pci: Make structure peak_pciec_i2c_bit_ops constant 2019-08-20 13:41:25 +02:00
softing net/can: using dev_get_drvdata directly 2019-07-05 15:24:41 -07:00
spi can: mcp251x: Call wrapper instead of regulator_disable() 2019-09-03 10:23:57 +02:00
usb can: peak_usb: report bus recovery as well 2019-11-04 21:47:20 +01:00
at91_can.c can: mark expected switch fall-throughs 2019-07-25 20:09:42 -05:00
dev.c can: dev: add missing of_node_put() after calling of_get_child_by_name() 2019-11-04 21:47:20 +01:00
flexcan.c can: flexcan: disable completely the ECC mechanism 2019-11-04 21:47:20 +01:00
grcan.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
janz-ican3.c net: Remove dev_err() usage after platform_get_irq() 2019-07-30 14:37:35 -07:00
Kconfig can: kvaser_pciefd: Add driver for Kvaser PCIEcan devices 2019-07-24 10:31:53 +02:00
kvaser_pciefd.c can: kvaser_pciefd: the PWM generator is running at the bus frequency of the system. 2019-09-03 10:23:57 +02:00
led.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
Makefile can: kvaser_pciefd: Add driver for Kvaser PCIEcan devices 2019-07-24 10:31:53 +02:00
pch_can.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 340 2019-06-05 17:37:07 +02:00
rx-offload.c can: rx-offload: can_rx_offload_offload_one(): use ERR_PTR() to propagate error value in case of errors 2019-11-04 21:47:22 +01:00
slcan.c can: make use of preallocated can_ml_priv for per device struct can_dev_rcv_lists 2019-09-04 13:29:15 +02:00
sun4i_can.c net: Remove dev_err() usage after platform_get_irq() 2019-07-30 14:37:35 -07:00
ti_hecc.c can: ti_hecc: ti_hecc_mailbox_read(): remove set but not used variable 'mbx_mask' 2019-08-13 16:40:29 +02:00
vcan.c can: make use of preallocated can_ml_priv for per device struct can_dev_rcv_lists 2019-09-04 13:29:15 +02:00
vxcan.c can: make use of preallocated can_ml_priv for per device struct can_dev_rcv_lists 2019-09-04 13:29:15 +02:00
xilinx_can.c can: xilinx_can: Fix flags field initialization for axi can 2019-11-04 21:47:21 +01:00