qemu/hw
Vladimir Sementsov-Ogievskiy 1de7096d83 xen: Use ERRP_GUARD()
If we want to check error after errp-function call, we need to
introduce local_err and then propagate it to errp. Instead, use
the ERRP_GUARD() macro, benefits are:
1. No need of explicit error_propagate call
2. No need of explicit local_err variable: use errp directly
3. ERRP_GUARD() leaves errp as is if it's not NULL or
   &error_fatal, this means that we don't break error_abort
   (we'll abort on error_set, not on error_propagate)

If we want to add some info to errp (by error_prepend() or
error_append_hint()), we must use the ERRP_GUARD() macro.
Otherwise, this info will not be added when errp == &error_fatal
(the program will exit prior to the error_append_hint() or
error_prepend() call).  No such cases are being fixed here.

This commit is generated by command

    sed -n '/^X86 Xen CPUs$/,/^$/{s/^F: //p}' MAINTAINERS | \
    xargs git ls-files | grep '\.[hc]$' | \
    xargs spatch \
        --sp-file scripts/coccinelle/errp-guard.cocci \
        --macro-file scripts/cocci-macro-file.h \
        --in-place --no-show-diff --max-width 80

Reported-by: Kevin Wolf <kwolf@redhat.com>
Reported-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
[Commit message tweaked]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20200707165037.1026246-9-armbru@redhat.com>
[ERRP_AUTO_PROPAGATE() renamed to ERRP_GUARD(), and
auto-propagated-errp.cocci to errp-guard.cocci.  Commit message
tweaked again.]
2020-07-10 15:18:09 +02:00
..
9pfs virtio-9p: Use ERRP_GUARD() 2020-07-10 15:18:09 +02:00
acpi
adc
alpha
arm
audio
block xen: Use ERRP_GUARD() 2020-07-10 15:18:09 +02:00
char
core
cpu
cris
display
dma
gpio
hppa
hyperv
i2c
i386
ide
input
intc
ipack
ipmi
isa
lm32
m68k
mem
microblaze
mips
misc
moxie
net
nios2
nubus
nvram fw_cfg: Use ERRP_GUARD() 2020-07-10 15:18:09 +02:00
openrisc
pci
pci-bridge
pci-host xen: Use ERRP_GUARD() 2020-07-10 15:18:09 +02:00
pcmcia
ppc
rdma
riscv
rtc
rx
s390x
scsi
sd
semihosting
sh4
smbios
sparc
sparc64
ssi
timer
tpm
tricore
unicore32
usb
vfio
virtio
watchdog
xen xen: Use ERRP_GUARD() 2020-07-10 15:18:09 +02:00
xenpv
xtensa
Kconfig
Makefile.objs