/dev/mem: Mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index ffeb60d..4b00d6a 100644 (file)
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -765,6 +765,7 @@ static loff_t memory_lseek(struct file *file, loff_t offset, int orig)
        switch (orig) {
        case SEEK_CUR:
                offset += file->f_pos;
+               /* fall through */
        case SEEK_SET:
                /* to avoid userland mistaking f_pos=-9 as -EBADF=-9 */
                if ((unsigned long long)offset >= -MAX_ERRNO) {