linux/drivers/media
Kees Cook 3f649ab728 treewide: Remove uninitialized_var() usage
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>
2020-07-16 12:35:15 -07:00
..
cec Kbuild updates for v5.8 (2nd) 2020-06-13 13:29:16 -07:00
common media updates for v5.8-rc1 2020-06-13 13:09:38 -07:00
dvb-core media: dvbdev: Fix tuner->demod media controller link 2020-05-25 09:09:05 +02:00
dvb-frontends treewide: Remove uninitialized_var() usage 2020-07-16 12:35:15 -07:00
firewire media: Kconfig: mode firewire comment to firewire/Kconfig 2020-04-14 10:29:04 +02:00
i2c media updates for v5.8-rc1 2020-06-03 20:59:38 -07:00
mc media: entity: Pass entity to get_fwnode_pad operation 2020-05-18 11:12:05 +02:00
mmc media updates for v5.8-rc1 2020-06-03 20:59:38 -07:00
pci mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
platform media: omap3isp: remove cacheflush.h 2020-06-26 00:27:37 -07:00
radio media: radio: don't use a menu just for wl128x driver 2020-04-16 10:34:57 +02:00
rc media updates for v5.8-rc1 2020-06-03 20:59:38 -07:00
spi media: i2c/Kconfig: use sub-menus for I2C support 2020-04-16 10:34:40 +02:00
test-drivers media: vimc: Make use of V4L2_CAP_IO_MC 2020-05-06 12:10:12 +02:00
tuners treewide: Remove uninitialized_var() usage 2020-07-16 12:35:15 -07:00
usb treewide: Remove uninitialized_var() usage 2020-07-16 12:35:15 -07:00
v4l2-core media updates for v5.8-rc1 2020-06-13 13:09:38 -07:00
Kconfig media: media/test_drivers: rename to test-drivers 2020-04-16 10:38:31 +02:00
Makefile media: media/test_drivers: rename to test-drivers 2020-04-16 10:38:31 +02:00