From: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Date: Tue, 17 May 2016 11:05:34 +0200
> 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@xxxxxxxxx>
> Acked-by: Sergei Shtylyov <sergei.shtylyov@xxxxxxxxxxxxxxxxxx>
Applied.
