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authorOliver Neukum <oneukum@suse.com>2015-12-03 17:03:34 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-12-04 19:29:54 +0300
commit1eaf35e4dd592c59041bc1ed3248c46326da1f5f (patch)
tree98669817e60cdda803581671f5f281bd0bfba512 /drivers/usb/host/xhci.c
parent097a9ea0e48fa33159ad47d1dc9ef3b215bfc090 (diff)
downloadlinux-1eaf35e4dd592c59041bc1ed3248c46326da1f5f.tar.xz
xhci: refuse loading if nousb is used
The module should fail to load. Signed-off-by: Oliver Neukum <oneukum@suse.com> CC: stable@kernel.org 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 887f308376f6..643d3121d100 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -5068,6 +5068,10 @@ 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;
}