From: Michal Nazarewicz <mina86@mina86.com>
Date: Thu, 11 Sep 2014 16:52:49 +0000 (+0200)
Subject: usb: f_fs: replace BUG in dead-code with less serious WARN_ON
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=fe00bcbf8a124980a38ce395ed6422d41be17374;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

usb: f_fs: replace BUG in dead-code with less serious WARN_ON

Even though the BUG() in __ffs_event_add is a dead-code, it is still
better to warn rather then crash the system if that code ever gets
executed.

Reported-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---

diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c
index a345385a5abe..a86b0a231a8c 100644
--- a/drivers/usb/gadget/function/f_fs.c
+++ b/drivers/usb/gadget/function/f_fs.c
@@ -2337,7 +2337,8 @@ static void __ffs_event_add(struct ffs_data *ffs,
 		break;
 
 	default:
-		BUG();
+		WARN(1, "%d: unknown event, this should not happen\n", type);
+		return;
 	}
 
 	{