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Revert "USB/host: Cleanup unneccessary irq disable code"

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This reverts commit 73d4066055.

Martin Steigerwald reported that this change caused a hard lockup when
using USB if threadirqs are enabled.  Thomas pointed out that this patch
is incorrect, and can cause problems.  So revert it to get the
previously working functionality back.

Reported-by: Martin Steigerwald <Martin@lichtvoll.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Chuansheng Liu <chuansheng.liu@intel.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman
2012-11-13 10:52:52 -08:00
parent c0bc309887
commit e592c5d0b7
3 changed files with 18 additions and 2 deletions
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2
drivers/usb/host/ehci-ls1x.c
View File

@@ -113,7 +113,7 @@ static int ehci_hcd_ls1x_probe(struct platform_device *pdev)
goto err_put_hcd;
}
ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED);
if (ret)
goto err_put_hcd;

2
drivers/usb/host/ohci-xls.c
View File

@@ -56,7 +56,7 @@ static int ohci_xls_probe_internal(const struct hc_driver *driver,
goto err3;
}
retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
retval = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED);
if (retval != 0)
goto err4;
return retval;