pxa168: fix double deallocation of managed resources

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Commit 43d3ddf87a ("net: pxa168_eth: add device tree support") starts
to use managed resources by adding devm_clk_get() and
devm_ioremap_resource(), but it leaves explicit iounmap() and clock_put()
in pxa168_eth_remove() and in failure handling code of pxa168_eth_probe().
As a result double free can happen.

The patch removes explicit resource deallocation. Also it converts
clk_disable() to clk_disable_unprepare() to make it symmetrical with
clk_prepare_enable().

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Alexey Khoroshilov 2015-04-25 04:07:03 +03:00 • committed by David S. Miller

parent 2ea2f62c8b

commit 0e03fd3e33

1 changed files with 5 additions and 11 deletions

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16

drivers/net/ethernet/marvell/pxa168_eth.c

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