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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 11:28:59 -0800
commit3767d554c088e1e8e4680c69d57c31e000dd7dec (patch)
treec861a123e93679389a162a53804340bba6f6a01a /drivers/usb/host/xhci.c
parent877764274280a69a888e1fdb18d411b36dc25c31 (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/host/xhci.c')
-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 3f912705dcef..dca0a4692f08 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -5059,6 +5059,10 @@ 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;
}