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linux-brain/arch/powerpc/platforms/powernv
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Nicholas Piggin e15407a2a8 powerpc/powernv: opal_put_chars partial write fix 
[ Upstream commit bd90284cc6 ]

The intention here is to consume and discard the remaining buffer
upon error. This works if there has not been a previous partial write.
If there has been, then total_len is no longer total number of bytes
to copy. total_len is always "bytes left to copy", so it should be
added to written bytes.

This code may not be exercised any more if partial writes will not be
hit, but this is a small bugfix before a larger change.

Reviewed-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2018-09-26 08:36:33 +02:00
..
Kconfig powerpc/powernv: Add opal-prd channel 2015-06-05 08:32:21 +10:00
Makefile powerpc/powernv: Split cxl code out into a separate file 2016-07-14 20:26:31 +10:00
eeh-powernv.c powerpc/powernv: Use CPU-endian hub diag-data type in pnv_eeh_get_and_dump_hub_diag() 2016-10-04 16:29:23 +11:00
idle.c powerpc/powernv: Use deepest stop state when cpu is offlined 2016-07-15 20:18:42 +10:00
npu-dma.c powerpc/sparse: Make a bunch of things static 2016-09-13 17:35:47 +10:00
opal-async.c powerpc/opal: Fix EBUSY bug in acquiring tokens 2017-12-20 10:07:28 +01:00
opal-dump.c powerpc/powernv : Drop reference added by kset_find_obj() 2016-08-29 12:48:21 +10:00
opal-elog.c powerpc/powernv : Drop reference added by kset_find_obj() 2016-08-29 12:48:21 +10:00
opal-flash.c powerpc/powernv: Add interfaces for flash device access 2015-04-11 20:49:21 +10:00
opal-hmi.c powerpc/powernv: Use the "unknown" checkstop type as a fallback 2016-04-11 20:30:40 +10:00
opal-irqchip.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
opal-kmsg.c powerpc/powernv: Fix OPAL_CONSOLE_FLUSH prototype and usages 2016-01-13 12:35:17 +11:00
opal-lpc.c powerpc/powernv: Properly fix LPC debugfs endianness 2014-10-31 17:09:04 +11:00
opal-memory-errors.c powerpc/powernv: Fix spelling mistake "Retrived" -> "Retrieved" 2016-06-28 13:52:18 +10:00
opal-msglog.c powerpc/powernv: don't create OPAL msglog sysfs entry if memcons init fails 2016-02-22 20:31:55 +11:00
opal-nvram.c powerpc/powernv: Fix NVRAM sleep in invalid context when crashing 2018-05-22 16:57:57 +02:00
opal-power.c powerpc/powernv: Add poweroff (EPOW, DPO) events support for PowerNV platform 2015-07-16 13:34:36 +10:00
opal-prd.c powerpc/powernv: Drop owner assignment from platform_driver 2015-11-24 14:21:28 +11:00
opal-rtc.c rtc: opal: Fix OPAL RTC driver OPAL_BUSY loops 2018-05-01 15:13:09 -07:00
opal-sensor.c powerpc/opal: Add inline function to get rc from an ASYNC_COMP opal_msg 2016-06-29 17:33:18 +10:00
opal-sysparam.c powerpc/opal: Add inline function to get rc from an ASYNC_COMP opal_msg 2016-06-29 17:33:18 +10:00
opal-tracepoints.c powerpc: Introduce asm-prototypes.h 2016-06-16 22:39:54 +10:00
opal-wrappers.S powerpc/powernv: Fix opal_exit tracepoint opcode 2017-05-14 14:00:14 +02:00
opal-xscom.c powerpc/powernv: remove FW_FEATURE_OPALv3 and just use FW_FEATURE_OPAL 2015-12-17 22:40:54 +11:00
opal.c powerpc/powernv: opal_put_chars partial write fix 2018-09-26 08:36:33 +02:00
pci-cxl.c powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
pci-ioda.c powerpc/powernv/pci: Work around races in PCI bridge enabling 2018-09-09 20:01:20 +02:00
pci.c powerpc/powernv: Use CPU-endian PEST in pnv_pci_dump_p7ioc_diag_data() 2016-10-04 16:29:59 +11:00
pci.h dma-mapping: use unsigned long for dma_attrs 2016-08-04 08:50:07 -04:00
powernv.h powerpc/powernv: Use deepest stop state when cpu is offlined 2016-07-15 20:18:42 +10:00
rng.c powerpc: Use hardware RNG for arch_get_random_seed_* not arch_get_random_* 2015-07-23 19:52:03 +10:00
setup.c powerpc/64s: Add support for a store forwarding barrier at kernel entry/exit 2018-06-06 16:44:37 +02:00
smp.c powerpc/powernv: Fix CPU hotplug to handle waking on HVI 2017-02-14 15:25:40 -08:00
subcore-asm.S powerpc/powernv: Add support for POWER8 split core on powernv 2014-05-28 13:35:37 +10:00
subcore.c powerpc/powernv: Create separate subcores CPU feature bit 2016-02-22 20:47:46 +11:00
subcore.h powernv/powerpc: Add winkle support for offline cpus 2014-12-15 10:46:41 +11:00