android_kernel_samsung_a7y1.../drivers/soc/mediatek
Nathan Chancellor 90f05f3421 soc: mediatek: pwrap: Zero initialize rdata in pwrap_init_cipher
[ Upstream commit 89e28da82836530f1ac7a3a32fecc31f22d79b3e ]

When building with -Wsometimes-uninitialized, Clang warns:

drivers/soc/mediatek/mtk-pmic-wrap.c:1358:6: error: variable 'rdata' is
used uninitialized whenever '||' condition is true
[-Werror,-Wsometimes-uninitialized]

If pwrap_write returns non-zero, pwrap_read will not be called to
initialize rdata, meaning that we will use some random uninitialized
stack value in our print statement. Zero initialize rdata in case this
happens.

Link: https://github.com/ClangBuiltLinux/linux/issues/401
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-04-06 19:02:13 +02:00
..
Kconfig A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
Makefile A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
mtk-infracfg.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
mtk-pmic-wrap.c soc: mediatek: pwrap: Zero initialize rdata in pwrap_init_cipher 2020-04-06 19:02:13 +02:00
mtk-scpsys.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30