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author | Christophe JAILLET <christophe.jaillet@wanadoo.fr> | 2021-05-12 11:08:14 +0300 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-05-13 14:47:36 +0200 |
commit | dda32c00c9a0fa103b5d54ef72c477b7aa993679 (patch) | |
tree | a4b8829caf9f1c1fc49f50b85f7dc02a9da2ebcf /drivers/usb/cdns3 | |
parent | 9b6a126ae58d9edfdde2d5f2e87f7615ea5e0155 (diff) |
xhci: Do not use GFP_KERNEL in (potentially) atomic context
'xhci_urb_enqueue()' is passed a 'mem_flags' argument, because "URBs may be
submitted in interrupt context" (see comment related to 'usb_submit_urb()'
in 'drivers/usb/core/urb.c')
So this flag should be used in all the calling chain.
Up to now, 'xhci_check_maxpacket()' which is only called from
'xhci_urb_enqueue()', uses GFP_KERNEL.
Be safe and pass the mem_flags to this function as well.
Fixes: ddba5cd0aeff ("xhci: Use command structures when queuing commands on the command ring")
Cc: <stable@vger.kernel.org>
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20210512080816.866037-4-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/cdns3')
0 files changed, 0 insertions, 0 deletions