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| author | Tony Lindgren <tony@atomide.com> | 2017-01-03 18:13:48 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-01-05 19:18:05 +0100 |
| commit | 8c300fe282fa254ea730c92cb0983e2642dc1fff (patch) | |
| tree | b91cfc467cb0d763f17a33da0dd169ff19d39792 | |
| parent | c48400baa02155a5ddad63e8554602e48782278c (diff) | |
| download | linux-8c300fe282fa254ea730c92cb0983e2642dc1fff.tar.gz linux-8c300fe282fa254ea730c92cb0983e2642dc1fff.tar.bz2 linux-8c300fe282fa254ea730c92cb0983e2642dc1fff.zip | |
usb: musb: Fix trying to free already-free IRQ 4
When unloading omap2430, we can get the following splat:
WARNING: CPU: 1 PID: 295 at kernel/irq/manage.c:1478 __free_irq+0xa8/0x2c8
Trying to free already-free IRQ 4
...
[<c01a8b78>] (free_irq) from [<bf0aea84>]
(musbhs_dma_controller_destroy+0x28/0xb0 [musb_hdrc])
[<bf0aea84>] (musbhs_dma_controller_destroy [musb_hdrc]) from
[<bf09f88c>] (musb_remove+0xf0/0x12c [musb_hdrc])
[<bf09f88c>] (musb_remove [musb_hdrc]) from [<c056a384>]
(platform_drv_remove+0x24/0x3c)
...
This is because the irq number in use is 260 nowadays, and the dma
controller is using u8 instead of int.
Fixes: 6995eb68aab7 ("USB: musb: enable low level DMA operation for Blackfin")
Signed-off-by: Tony Lindgren <tony@atomide.com>
[b-liu@ti.com: added Fixes tag]
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/musb/musbhsdma.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/musb/musbhsdma.h b/drivers/usb/musb/musbhsdma.h index f7b13fd25257..a3dcbd55e436 100644 --- a/drivers/usb/musb/musbhsdma.h +++ b/drivers/usb/musb/musbhsdma.h @@ -157,5 +157,5 @@ struct musb_dma_controller { void __iomem *base; u8 channel_count; u8 used_channels; - u8 irq; + int irq; }; |