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-rw-r--r--drivers/usb/host/ehci-hcd.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 05d3f0b..fdad739 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -945,7 +945,9 @@ int usb_lowlevel_init(int index, void **controller)
* Split Transactions will be spread across microframes using
* S-mask and C-mask.
*/
- ehcic[index].periodic_list = memalign(4096, 1024*4);
+ if (ehcic[index].periodic_list == NULL)
+ ehcic[index].periodic_list = memalign(4096, 1024 * 4);
+
if (!ehcic[index].periodic_list)
return -ENOMEM;
for (i = 0; i < 1024; i++) {