virtio-console: remove unnecessary kmemdup()

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This revert commit c4baad5029 ("virtio-console: avoid DMA from stack")

hvc framework will never pass stack memory to the put_chars() function,
So the calling of kmemdup() is unnecessary, we can remove it.

Signed-off-by: Xianting Tian <xianting.tian@linux.alibaba.com>
Reviewed-by: Shile Zhang <shile.zhang@linux.alibaba.com>
Link: https://lore.kernel.org/r/20211015024658.1353987-4-xianting.tian@linux.alibaba.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Xianting Tian 2021-10-15 10:46:58 +08:00 • committed by Greg Kroah-Hartman

parent 0986d7bc55

commit 9db81eca10

1 changed files with 2 additions and 10 deletions

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drivers/char/virtio_console.c

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