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authorJia-Ju Bai <baijiaju1990@gmail.com>2018-04-11 09:15:31 +0800
committerBoris Ostrovsky <boris.ostrovsky@oracle.com>2018-04-16 10:20:45 -0400
commitde3d01fd8549ec0444fc917aab711b3f884930c5 (patch)
tree6a2e461e221e7cddc8f21923ce9deb8037b23d36 /include/xen
parentxen: xen-pciback: Replace GFP_ATOMIC with GFP_KERNEL in xen_pcibk_config_quirks_init (diff)
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xen: xen-pciback: Replace GFP_ATOMIC with GFP_KERNEL in pcistub_reg_add
pcistub_reg_add() is never called in atomic context. pcistub_reg_add() is only called by pcistub_quirk_add, which is only set in DRIVER_ATTR(). Despite never getting called from atomic context, pcistub_reg_add() calls kzalloc() with GFP_ATOMIC, which does not sleep for allocation. GFP_ATOMIC is not necessary and can be replaced with GFP_KERNEL, which can sleep and improve the possibility of sucessful allocation. This is found by a static analysis tool named DCNS written by myself. And I also manually check it. Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
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