usbnet: fix memory allocation in helpers
authorOliver Neukum <oneukum@suse.com>
Tue, 28 Jun 2022 09:35:17 +0000 (11:35 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 7 Jul 2022 15:53:26 +0000 (17:53 +0200)
commit536d2a6a4fd691701de452b0a39ec3be65bf777a
tree2a009857c5393561b8ddb1441eec147193125c0e
parentf7eaa228b0fac2ef3a875f6e436fd210a5a831d6
usbnet: fix memory allocation in helpers

commit e65af5403e462ccd7dff6a045a886c64da598c2e upstream.

usbnet provides some helper functions that are also used in
the context of reset() operations. During a reset the other
drivers on a device are unable to operate. As that can be block
drivers, a driver for another interface cannot use paging
in its memory allocations without risking a deadlock.
Use GFP_NOIO in the helpers.

Fixes: 877bd862f32b8 ("usbnet: introduce usbnet 3 command helpers")
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Link: https://lore.kernel.org/r/20220628093517.7469-1-oneukum@suse.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/net/usb/usbnet.c