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usb: don't create dma pools for HCDs with a localmem_pool

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If the HCD provides a localmem pool we will never use the DMA pools, so
don't create them.

Fixes: b0310c2f09 ("USB: use genalloc for USB HCs with local memory")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20190811080520.21712-2-hch@lst.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Christoph Hellwig 2019-08-11 10:05:15 +02:00 committed by Greg Kroah-Hartman
parent 141822aa3f
commit dd3ecf17ba
1 changed files with 3 additions and 3 deletions
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6
drivers/usb/core/buffer.c
View file

@ -66,9 +66,9 @@ int hcd_buffer_create(struct usb_hcd *hcd)
char name[16];
int i, size;
if (!IS_ENABLED(CONFIG_HAS_DMA) ||
(!is_device_dma_capable(hcd->self.sysdev) &&
!hcd->localmem_pool))
if (hcd->localmem_pool ||
!IS_ENABLED(CONFIG_HAS_DMA) ||
!is_device_dma_capable(hcd->self.sysdev))
return 0;
for (i = 0; i < HCD_BUFFER_POOLS; i++) {