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authorMing Lei <tom.leiming@gmail.com>2008-09-18 19:06:38 +0400
committerGreg Kroah-Hartman <gregkh@suse.de>2008-10-18 01:40:57 +0400
commit3c4bb71f96c69ef3c81fda108c96b633a2000de2 (patch)
tree6dcbb788842eb1cc71f99748ca76a0a95139c0f5
parent3c04e20ea95f9a8555456000e0ff340bdc46dea8 (diff)
downloadlinux-3c4bb71f96c69ef3c81fda108c96b633a2000de2.tar.xz
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 <tom.leiming@gmail.com> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--drivers/usb/host/ehci-dbg.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c
index 9534ff3f5e7b..5d57773e730e 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;