diff options
| author | Timur Tabi <timur@codeaurora.org> | 2017-07-13 23:45:41 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-07-14 18:55:32 +0300 |
| commit | c98b0537f0d962b46c62c27b6c2d783257f7400f (patch) | |
| tree | 3c5848d0ddded930eb02991aeec1d21b08b5d31b | |
| parent | a8f5cb9e79913a6918f87495d4969706f8817b8e (diff) | |
| download | linux-c98b0537f0d962b46c62c27b6c2d783257f7400f.tar.xz | |
net: qcom/emac: fix double free of SGMII IRQ during shutdown
If the interface is not up, then don't try to close it during a
shutdown. This avoids possible double free of the IRQ, which
can happen during a shutdown.
Fixes: 03eb3eb4d4d5 ("net: qcom/emac: add shutdown function")
Signed-off-by: Timur Tabi <timur@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/qualcomm/emac/emac.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/net/ethernet/qualcomm/emac/emac.c b/drivers/net/ethernet/qualcomm/emac/emac.c index 746d94e28470..60850bfa3d32 100644 --- a/drivers/net/ethernet/qualcomm/emac/emac.c +++ b/drivers/net/ethernet/qualcomm/emac/emac.c @@ -766,11 +766,13 @@ static void emac_shutdown(struct platform_device *pdev) struct emac_adapter *adpt = netdev_priv(netdev); struct emac_sgmii *sgmii = &adpt->phy; - /* Closing the SGMII turns off its interrupts */ - sgmii->close(adpt); + if (netdev->flags & IFF_UP) { + /* Closing the SGMII turns off its interrupts */ + sgmii->close(adpt); - /* Resetting the MAC turns off all DMA and its interrupts */ - emac_mac_reset(adpt); + /* Resetting the MAC turns off all DMA and its interrupts */ + emac_mac_reset(adpt); + } } static struct platform_driver emac_platform_driver = { |