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net/mlx5: Avoid double clear or set of sync reset requested
commit fc3d3db upstream. Double clear of reset requested state can lead to NULL pointer as it will try to delete the timer twice. This can happen for example on a race between abort from FW and pci error or reset. Avoid such case using test_and_clear_bit() to verify only one time reset requested state clear flow. Similarly use test_and_set_bit() to verify only one time reset requested state set flow. Fixes: 7dd6df3 ("net/mlx5: Handle sync reset abort event") Signed-off-by: Moshe Shemesh <moshe@nvidia.com> Reviewed-by: Maher Sanalla <msanalla@nvidia.com> Reviewed-by: Shay Drory <shayd@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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