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5d17bcc30d
linux/drivers/ide
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Kees Cook 0638dcc7e7 treewide: Remove uninitialized_var() usage 
commit 3f649ab728 upstream.

Using uninitialized_var() is dangerous as it papers over real bugs[1]
(or can in the future), and suppresses unrelated compiler warnings
(e.g. "unused variable"). If the compiler thinks it is uninitialized,
either simply initialize the variable or make compiler changes.

In preparation for removing[2] the[3] macro[4], remove all remaining
needless uses with the following script:

git grep '\buninitialized_var\b' | cut -d: -f1 | sort -u | \
	xargs perl -pi -e \
		's/\buninitialized_var\(([^\)]+)\)/\1/g;
		 s:\s*/\* (GCC be quiet|to make compiler happy) \*/$::g;'

drivers/video/fbdev/riva/riva_hw.c was manually tweaked to avoid
pathological white-space.

No outstanding warnings were found building allmodconfig with GCC 9.3.0
for x86_64, i386, arm64, arm, powerpc, powerpc64le, s390x, mips, sparc64,
alpha, and m68k.

[1] https://lore.kernel.org/lkml/20200603174714.192027-1-glider@google.com/
[2] https://lore.kernel.org/lkml/CA+55aFw+Vbj0i=1TGqCR5vQkCzWJ0QxK6CernOU6eedsudAixw@mail.gmail.com/
[3] https://lore.kernel.org/lkml/CA+55aFwgbgqhbp1fkxvRKEpzyR5J8n1vKT1VZdz9knmPuXhOeg@mail.gmail.com/
[4] https://lore.kernel.org/lkml/CA+55aFz2500WfbKXAx8s67wrm9=yVJu65TpLgN_ybYNv0VEOKA@mail.gmail.com/

Reviewed-by: Leon Romanovsky <leonro@mellanox.com> # drivers/infiniband and mlx4/mlx5
Acked-by: Jason Gunthorpe <jgg@mellanox.com> # IB
Acked-by: Kalle Valo <kvalo@codeaurora.org> # wireless drivers
Reviewed-by: Chao Yu <yuchao0@huawei.com> # erofs
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-06-09 10:29:01 +02:00
..
aec62xx.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
ali14xx.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
alim15x3.c alim15x3: move irq-restore before pci_dev_put() 2018-06-05 16:26:46 -04:00
amd74xx.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
atiixp.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
au1xxx-ide.c
buddha.c
cmd64x.c cmd64x: potential buffer overflow in cmd64x_program_timings() 2020-02-24 08:36:53 +01:00
cmd640.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
cs5520.c
cs5530.c
cs5535.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cs5536.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
cy82c693.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
delkin_cb.c
dtc2278.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
falconide.c
gayle.c
hpt366.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
ht6560b.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
icside.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
ide_platform.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ide-4drives.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
ide-acpi.c treewide: Remove uninitialized_var() usage 2023-06-09 10:29:01 +02:00
ide-atapi.c treewide: Remove uninitialized_var() usage 2023-06-09 10:29:01 +02:00
ide-cd_ioctl.c Revert "ide: unexport DISK_EVENT_MEDIA_CHANGE for ide-gd and ide-cd" 2019-04-12 13:35:25 -06:00
ide-cd_verbose.c
ide-cd.c docs: cdrom: convert docs to ReST and rename to *.rst 2019-06-14 14:20:46 -06:00
ide-cd.h block: Switch struct packet_command to use struct scsi_sense_hdr 2018-08-02 15:22:13 -06:00
ide-cs.c
ide-devsets.c ide: don't use req->special 2018-11-10 08:03:52 -07:00
ide-disk_ioctl.c
ide-disk_proc.c ide: replace ->proc_fops with ->proc_show 2018-05-16 07:24:30 +02:00
ide-disk.c ide: don't use req->special 2018-11-10 08:03:52 -07:00
ide-disk.h
ide-dma-sff.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
ide-dma.c ide: kill ide_toggle_bounce 2018-05-07 07:15:41 +02:00
ide-eh.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
ide-floppy_ioctl.c
ide-floppy_proc.c ide: replace ->proc_fops with ->proc_show 2018-05-16 07:24:30 +02:00
ide-floppy.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide 2019-03-11 09:34:00 -07:00
ide-floppy.h
ide-gd.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
ide-gd.h
ide-generic.c treewide: simplify Kconfig dependencies for removed archs 2018-03-26 15:55:57 +02:00
ide-io-std.c treewide: Remove uninitialized_var() usage 2023-06-09 10:29:01 +02:00
ide-io.c treewide: Remove uninitialized_var() usage 2023-06-09 10:29:01 +02:00
ide-ioctls.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
ide-iops.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
ide-legacy.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
ide-lib.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
ide-park.c ide: ensure atapi sense request aren't preempted 2019-01-31 08:25:09 -07:00
ide-pci-generic.c
ide-pio-blacklist.c
ide-pm.c ide: don't acquire queue_lock in ide_complete_pm_rq 2018-11-16 09:17:02 -07:00
ide-pnp.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 47 2019-05-24 17:27:13 +02:00
ide-probe.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
ide-proc.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
ide-scan-pci.c
ide-sysfs.c treewide: Remove uninitialized_var() usage 2023-06-09 10:29:01 +02:00
ide-tape.c ide: don't use req->special 2018-11-10 08:03:52 -07:00
ide-taskfile.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
ide-timings.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
ide-xfer-mode.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
ide.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
it821x.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
it8172.c
it8213.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
jmicron.c
Kconfig ide: remove the sgiioc4 driver 2019-08-16 11:33:56 -07:00
macide.c
Makefile ide: remove the sgiioc4 driver 2019-08-16 11:33:56 -07:00
ns87415.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
opti621.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
palm_bk3710.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
pdc202xx_new.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
pdc202xx_old.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
piix.c
pmac.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
q40ide.c
qd65xx.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
qd65xx.h
rapide.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
rz1000.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
sc1200.c
serverworks.c ide: serverworks: potential overflow in svwks_set_pio_mode() 2020-02-24 08:36:53 +01:00
setup-pci.c
siimage.c
sis5513.c ide: mark expected switch fall-throughs 2018-08-13 11:48:54 -07:00
sl82c105.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
slc90e66.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
tc86c001.c
triflex.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
trm290.c
tx4938ide.c
tx4939ide.c drivers: Remove explicit invocations of mmiowb() 2019-04-08 12:01:02 +01:00
umc8672.c treewide: Remove uninitialized_var() usage 2023-06-09 10:29:01 +02:00
via82cxxx.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00