ui/input-linux: Do not ignore ioctl() return value
Fix warnings reported by Clang static code analyzer:
CC ui/input-linux.o
ui/input-linux.c:343:9: warning: Value stored to 'rc' is never read
rc = ioctl(il->fd, EVIOCGBIT(EV_REL, sizeof(relmap)), &relmap);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ui/input-linux.c:351:9: warning: Value stored to 'rc' is never read
rc = ioctl(il->fd, EVIOCGBIT(EV_ABS, sizeof(absmap)), &absmap);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ui/input-linux.c:354:13: warning: Value stored to 'rc' is never read
rc = ioctl(il->fd, EVIOCGABS(ABS_X), &absinfo);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ui/input-linux.c:357:13: warning: Value stored to 'rc' is never read
rc = ioctl(il->fd, EVIOCGABS(ABS_Y), &absinfo);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ui/input-linux.c:365:9: warning: Value stored to 'rc' is never read
rc = ioctl(il->fd, EVIOCGBIT(EV_KEY, sizeof(keymap)), keymap);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ui/input-linux.c:366:9: warning: Value stored to 'rc' is never read
rc = ioctl(il->fd, EVIOCGKEY(sizeof(keystate)), keystate);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Reported-by: Clang Static Analyzer
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
Message-id: 20200322161219.17757-1-philmd@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
1 file changed
