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authorOliver Neukum <oneukum@suse.com>2015-12-03 15:03:34 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-01-31 11:25:49 -0800
commit1c3e006c2a46355572b37e0fe075c5b89158f99a (patch)
tree59ab2c67d271b52e691a2fb8fcaa9e7af634aaba
parentd905f125456a06ec755e075e10f80ee5e30ddb70 (diff)
xhci: refuse loading if nousb is used
commit 1eaf35e4dd592c59041bc1ed3248c46326da1f5f upstream. The module should fail to load. Signed-off-by: Oliver Neukum <oneukum@suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/usb/host/xhci.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index b2f38f1e24b3..e40c300ff8d6 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -5042,6 +5042,10 @@ static int __init xhci_hcd_init(void)
BUILD_BUG_ON(sizeof(struct xhci_intr_reg) != 8*32/8);
/* xhci_run_regs has eight fields and embeds 128 xhci_intr_regs */
BUILD_BUG_ON(sizeof(struct xhci_run_regs) != (8+8*128)*32/8);
+
+ if (usb_disabled())
+ return -ENODEV;
+
return 0;
}