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| author |   Geert Uytterhoeven <geert+renesas@glider.be> | 2016-05-07 13:17:11 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2016-05-09 22:30:39 -0400 |
| commit | 7fa816b92c52e2c304f2ff6401e0d51e1d229ca5 (patch) | |
| tree | 6765347fe918d9844ca56d80ed75e5cc3024f7ac /drivers/net/ethernet/renesas/ravb_main.c | |
| parent | uapi glibc compat: fix compile errors when glibc net/if.h included before linux/if.h (diff) | |
| download | linux-dev-7fa816b92c52e2c304f2ff6401e0d51e1d229ca5.tar.xz linux-dev-7fa816b92c52e2c304f2ff6401e0d51e1d229ca5.zip | |
ravb: Add missing free_irq() call 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:ch24:emac) vs. 00000000 (eth0:ch24:emac)
ravb e6800000.ethernet eth0: cannot request IRQ eth0:ch24:emac
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 the R-Car
Gen3-specific secondary IRQ.
Add the missing free_irq() call to fix this.
Fixes: 22d4df8ff3a3cc72 ("ravb: Add support for r8a7795 SoC")
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>
Diffstat (limited to 'drivers/net/ethernet/renesas/ravb_main.c')
| -rw-r--r-- | drivers/net/ethernet/renesas/ravb_main.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index 9e2a0bd8f5a8..4277d0c12101 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -1506,6 +1506,8 @@ static int ravb_close(struct net_device *ndev) priv->phydev = NULL; } + if (priv->chip_id == RCAR_GEN3) + free_irq(priv->emac_irq, ndev); free_irq(ndev->irq, ndev); napi_disable(&priv->napi[RAVB_NC]); |