lkml.org 
[lkml]   [2021]   [Mar]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] usb: gadget: udc: amd5536udc_pci fix crash if dma is used
On Sat, Mar 13, 2021 at 02:20:32PM -0500, Tong Zhang wrote:
> init_dma_pools() calls dma_pool_create(...dev->dev) to create dma pool.
> however, dev->dev is actually set after calling init_dma_pools(), which
> effectively makes dma_pool_create(..NULL) and cause crash.
> To fix this issue, init dma only after dev->dev is set.
>
> [ 1.317993] RIP: 0010:dma_pool_create+0x83/0x290
> [ 1.323257] Call Trace:
> [ 1.323390] ? pci_write_config_word+0x27/0x30
> [ 1.323626] init_dma_pools+0x41/0x1a0 [snps_udc_core]
> [ 1.323899] udc_pci_probe+0x202/0x2b1 [amd5536udc_pci]
>
> Signed-off-by: Tong Zhang <ztong0001@gmail.com>

What commit caused this problem?

Can you resend this with a "Fixes:" tag added showing that?

thanks,

greg k-h

\
 
 \ /
  Last update: 2021-03-17 21:44    [W:0.106 / U:0.112 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site