[PATCH] fs/signalfd: annotate implicit fall through

[Mathieu Malaterre]

There is a plan to build the kernel with -Wimplicit-fallthrough and
this place in the code produced a warning (W=1).

This commit remove the following warning:

  fs/signalfd.c:178:7: warning: this statement may fall through 
[-Wimplicit-fallthrough=]

Signed-off-by: Mathieu Malaterre <ma...@debian.org>
---
 fs/signalfd.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/signalfd.c b/fs/signalfd.c
index 757afc7c5895..44b6845b071c 100644
--- a/fs/signalfd.c
+++ b/fs/signalfd.c
@@ -176,6 +176,7 @@ static ssize_t signalfd_dequeue(struct signalfd_ctx *ctx, 
kernel_siginfo_t *info
                if (!nonblock)
                        break;
                ret = -EAGAIN;
+               /* fall through */
        default:
                spin_unlock_irq(&current->sighand->siglock);
                return ret;
-- 
2.19.2