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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 11:23:35 -0800
commit3fabd53542c866e28e13a2cff43904d7a66308e0 (patch)
tree902e82328bc13edb5eb88ec1a344eacc24b593c4 /drivers/usb
parent3f5e25aa380d0ed5a38a824049ed520dabb149a9 (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>
Diffstat (limited to 'drivers/usb')
-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 471f73e151ae..f6bb118e4501 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -5054,6 +5054,10 @@ 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;
}