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usb: gadget: ffs: ffs_aio_cancel(): Save/restore IRQ flags
authorLars-Peter Clausen <lars@metafoo.de>
Thu, 16 Jan 2020 13:29:01 +0000 (15:29 +0200)
committerFelipe Balbi <balbi@kernel.org>
Tue, 11 Feb 2020 06:45:45 +0000 (08:45 +0200)
commit43d565727a3a6fd24e37c7c2116475106af71806
tree19403ca4f7fb79f71d671df4f26ce27c597b185dtree
parent9a0d6f7c0a83844baae1d6d85482863d2bf3b7a7commit | diff
usb: gadget: ffs: ffs_aio_cancel(): Save/restore IRQ flags

ffs_aio_cancel() can be called from both interrupt and thread context. Make
sure that the current IRQ state is saved and restored by using
spin_{un,}lock_irq{save,restore}().

Otherwise undefined behavior might occur.

Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
drivers/usb/gadget/function/f_fs.c diff | blob | history
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