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(parent: a91b593) | patch
USB: Don't use GFP_KERNEL while we cannot reset a storage device
authorOliver Neukum <oliver@neukum.org>
Tue, 12 Jan 2010 11:32:50 +0000 (12:32 +0100)
committerGreg Kroah-Hartman <gregkh@suse.de>
Wed, 20 Jan 2010 23:24:34 +0000 (15:24 -0800)
commitacbe2febe71abb2360b008e9ab3ee5c44169f78c
tree2952e2da8f32b918aaa27fd8ac00e04daa7787aftree | snapshot
parenta91b593edd4b3e8aa91f671b763b27b8119eb49dcommit | diff
USB: Don't use GFP_KERNEL while we cannot reset a storage device

Memory allocations with GFP_KERNEL can cause IO to a storage
device which can fail resulting in a need to reset the device.
Therefore GFP_KERNEL cannot be safely used between usb_lock_device()
and usb_unlock_device(). Replace by GFP_NOIO.

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Cc: stable <stable@kernel.org>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/usb/core/devices.c diff | blob | history
drivers/usb/core/message.c diff | blob | history
Full containers within linux kernel