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authorPeter Maydell <peter.maydell@linaro.org>2019-03-26 14:11:00 +0000
committerPeter Maydell <peter.maydell@linaro.org>2019-03-26 14:11:00 +0000
commit905870b53c031e4350cd1fbfc8d5010d25c8f6f8 (patch)
treed3006742d045809e766821eeb145d2988ccf5c42 /hw/usb
parent2ef80e14d526f50c4b751d1f15b5ca450d7f997f (diff)
parent339534d402524d75209df5d287464e17feb6941f (diff)
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Merge remote-tracking branch 'remotes/kraxel/tags/fixes-20190326-pull-request' into staging
fixes for 4.0: ohci and ati-vga # gpg: Signature made Tue 26 Mar 2019 14:05:40 GMT # gpg: using RSA key 4CB6D8EED3E87138 # gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" [full] # gpg: aka "Gerd Hoffmann <gerd@kraxel.org>" [full] # gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>" [full] # Primary key fingerprint: A032 8CFF B93A 17A7 9901 FE7D 4CB6 D8EE D3E8 7138 * remotes/kraxel/tags/fixes-20190326-pull-request: ati-vga: Fix indexed access to video memory ohci: don't die on ED_LINK_LIMIT overflow Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw/usb')
-rw-r--r--hw/usb/hcd-ohci.c7
1 files changed, 1 insertions, 6 deletions
diff --git a/hw/usb/hcd-ohci.c b/hw/usb/hcd-ohci.c
index 196a9f7..81cf5ab 100644
--- a/hw/usb/hcd-ohci.c
+++ b/hw/usb/hcd-ohci.c
@@ -1200,7 +1200,7 @@ static int ohci_service_ed_list(OHCIState *ohci, uint32_t head, int completion)
if (head == 0)
return 0;
- for (cur = head; cur; cur = next_ed) {
+ for (cur = head; cur && link_cnt++ < ED_LINK_LIMIT; cur = next_ed) {
if (ohci_read_ed(ohci, cur, &ed)) {
trace_usb_ohci_ed_read_error(cur);
ohci_die(ohci);
@@ -1209,11 +1209,6 @@ static int ohci_service_ed_list(OHCIState *ohci, uint32_t head, int completion)
next_ed = ed.next & OHCI_DPTR_MASK;
- if (++link_cnt > ED_LINK_LIMIT) {
- ohci_die(ohci);
- return 0;
- }
-
if ((ed.head & OHCI_ED_H) || (ed.flags & OHCI_ED_K)) {
uint32_t addr;
/* Cancel pending packets for ED that have been paused. */