USB: usbmon: mask seconds properly in text API

The code does not implement the comment, so timestamps for long traces
become confusing instead of wrapping neatly as expected. This was actually
observed. Fortunately for API being in debugfs, we can just fix this instead
of staying bug-for-bug compatible. Double fortunately, the stable binary
API is not affected.

Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/usb/mon/mon_text.c b/drivers/usb/mon/mon_text.c
index 16bfb61d24f9..31c11888ec6a 100644
--- a/drivers/usb/mon/mon_text.c
+++ b/drivers/usb/mon/mon_text.c
@@ -180,7 +180,7 @@ static inline unsigned int mon_get_timestamp(void)
         unsigned int stamp;
 
         do_gettimeofday(&tval);
-        stamp = tval.tv_sec & 0xFFFF;   /* 2^32 = 4294967296. Limit to 4096s. */
+        stamp = tval.tv_sec & 0xFFF;    /* 2^32 = 4294967296. Limit to 4096s. */
         stamp = stamp * 1000000 + tval.tv_usec;
         return stamp;
 }