diff options
| author |   Geert Uytterhoeven <geert+renesas@glider.be> | 2016-05-17 11:05:34 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2016-05-17 12:26:56 -0400 |
| commit | ccf928249c92b04ec9527e97a7c6b2cd8cd9dc10 (patch) | |
| tree | 6978462940fd72e2c06a61cab6bca938c9bc3c10 | |
| parent | qed: Remove a stray tab (diff) | |
| download | linux-dev-ccf928249c92b04ec9527e97a7c6b2cd8cd9dc10.tar.xz linux-dev-ccf928249c92b04ec9527e97a7c6b2cd8cd9dc10.zip | |
ravb: Add missing free_irq() calls to ravb_close()
When reopening the network device on ra7795/salvator-x, e.g. after a
DHCP timeout:
IP-Config: Reopening network devices...
genirq: Flags mismatch irq 139. 00000000 (eth0:ch0:rx_be) vs. 00000000 (ravb e6800000.ethernet eth0: cannot request IRQ eth0:ch0:rx_be
IP-Config: Failed to open eth0
IP-Config: No network devices available
The "mismatch" is due to requesting an IRQ that is already in use,
while IRQF_PROBE_SHARED wasn't set.
However, the real cause is that ravb_close() doesn't release any of the
R-Car Gen3-specific secondary IRQs.
Add the missing free_irq() calls to fix this.
Fixes: f51bdc236b6c5835 ("ravb: Add dma queue interrupt support")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/renesas/ravb_main.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index bcebafd78023..867caf6e7a5a 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -1667,8 +1667,13 @@ static int ravb_close(struct net_device *ndev) priv->phydev = NULL; } - if (priv->chip_id == RCAR_GEN3) + if (priv->chip_id != RCAR_GEN2) { + free_irq(priv->tx_irqs[RAVB_NC], ndev); + free_irq(priv->rx_irqs[RAVB_NC], ndev); + free_irq(priv->tx_irqs[RAVB_BE], ndev); + free_irq(priv->rx_irqs[RAVB_BE], ndev); free_irq(priv->emac_irq, ndev); + } free_irq(ndev->irq, ndev); napi_disable(&priv->napi[RAVB_NC]); |