octeontx2-pf: Fix interface down flag on error

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In the existing code while changing the number of TX/RX
queues using ethtool the PF/VF interface resources are
freed and reallocated (otx2_stop and otx2_open is called)
if the device is in running state. If any resource allocation
fails in otx2_open, driver free already allocated resources
and return. But again, when the number of queues changes
as the device state still running oxt2_stop is called.
In which we try to free already freed resources leading
to driver crash.
This patch fixes the issue by setting the INTF_DOWN flag on
error and free the resources in otx2_stop only if the flag is
not set.

Fixes: 50fe6c02e5 ("octeontx2-pf: Register and handle link notifications")
Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Signed-off-by: Sunil Kovvuri Goutham <Sunil.Goutham@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Geetha sowjanya 2021-07-25 13:29:03 +05:30 • committed by David S. Miller

parent ac059d1644

commit 69f0aeb13b

2 changed files with 8 additions and 4 deletions

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7

drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c

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5

drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c

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