staging: r8188eu: add error handling of rtw_read16
authorPavel Skripkin <paskripkin@gmail.com>
Tue, 7 Jun 2022 19:26:12 +0000 (22:26 +0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 10 Jun 2022 07:11:14 +0000 (09:11 +0200)
commitfed9e604eeb6150847d9757f6b056c12912d468b
tree5a14443dfb27103f4e0623eac8e1519d087c0a2b
parent857fe9e5efc09833fe1110e99d8baba954a86abb
staging: r8188eu: add error handling of rtw_read16

rtw_read16() reads data from device via USB API which may fail. In case
of any failure previous code returned stack data to callers, which is
wrong.

Fix it by changing rtw_read16() prototype and prevent caller from
touching random stack data

Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Link: https://lore.kernel.org/r/06b45afda048d0aeddeed983c2318680fe6265f5.1654629778.git.paskripkin@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/r8188eu/hal/rtl8188e_hal_init.c
drivers/staging/r8188eu/hal/rtl8188e_phycfg.c
drivers/staging/r8188eu/hal/usb_halinit.c
drivers/staging/r8188eu/hal/usb_ops_linux.c
drivers/staging/r8188eu/include/rtw_io.h
drivers/staging/r8188eu/os_dep/ioctl_linux.c
drivers/staging/r8188eu/os_dep/os_intfs.c