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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-10-13 00:53:47 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2009-10-14 17:54:44 -0400
commitb8430e1b82b7e514d76a88eb70a7d8831d50df1e (patch)
tree8be6895f39a120d4919a543e9a3c39a6917bf350 /Documentation/ioctl/hdio.txt
parent36f21329d217016f0f212f0752ae595b4a76754d (diff)
usb-storage: Workaround devices with bogus sense size
usb-storage: Workaround devices with bogus sense size Some devices, such as Huawei E169, advertise more than the standard amount of sense data, causing us to set US_FL_SANE_SENSE, assuming they support it. However, they subsequently fail the request sense with that size. This works around it generically. When a sense request fails due to a device returning an error, US_FL_SANE_SENSE was set, and that sense request used a larger sense size, we retry with a smaller size before giving up. Based on an original patch by Ben Efros <ben@pc-doctor.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Alan Stern <stern@rowland.harvard.edu> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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