From 3c4bb71f96c69ef3c81fda108c96b633a2000de2 Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Thu, 18 Sep 2008 23:06:38 +0800 Subject: [PATCH] USB: ehci-dbg: fix reading less content of periodic file This patch fix 2 problems about reading periodic file: 1. The "..." after a interrupt qh is missed because buffer pointer is not moved. 2. After setting p.ptr as NULL, its next qh or itd will be omited and can't be stored in debug buffer. Signed-off-by: Ming Lei Acked-by: David Brownell Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/ehci-dbg.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c index 9534ff3f5e7..5d57773e730 100644 --- a/drivers/usb/host/ehci-dbg.c +++ b/drivers/usb/host/ehci-dbg.c @@ -569,14 +569,16 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf) for (temp = 0; temp < seen_count; temp++) { if (seen [temp].ptr != p.ptr) continue; - if (p.qh->qh_next.ptr) + if (p.qh->qh_next.ptr) { temp = scnprintf (next, size, " ..."); - p.ptr = NULL; + size -= temp; + next += temp; + } break; } /* show more info the first time around */ - if (temp == seen_count && p.ptr) { + if (temp == seen_count) { u32 scratch = hc32_to_cpup(ehci, &p.qh->hw_info1); struct ehci_qtd *qtd; -- 2.20.1