luck/tmp_suning_uos_patched
1
0
Fork 1
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Fix for one swiotlb regression in 2.16 from Takashi.

Browse Source 
-----BEGIN PGP SIGNATURE-----
 
 iQI/BAABCgApFiEEgdbnc3r/njty3Iq9D55TZVIEUYMFAlrO9NILHGhjaEBsc3Qu
 ZGUACgkQD55TZVIEUYNMNg/+OO27GlzmTMVOW6ze8iOPam9yokU4/PRAdFYcOBUI
 LE9NvXnsX6wj+dhFmxsO4lw4aTWEHBa6ZE0FoHNDNj/MG8oOLqATC6gaOqEwh5Xg
 5yfosvbd/6GS8YH1vU6odIqNEfSqZh/ko/vHItz/LkpfbmJRfkwvf+lnUIDELAlH
 8tCmNbXM7FxY1Ma9q1XvIkS/3dqlcWgqegL4TTejKr/rM3VWDyhqx1eg2uU8saU8
 WQobchcrcGwy6NuEZ3TgEz3LUkBBCT/lrbNkIhKzll7O1d6fnTH04AFiBnEutVQv
 LUVJQKTjagV2EACFMckdsBDzB+ZbJsNZuWk40fT6OwtESqoZwIrIUCZB92nUv2rK
 noYtabkA5NfAOIkHuI98WYZZjngauAa4GHCzzIc6J3837JMyTfgKpS1HQAJ9hsqW
 ijaaCn49T4rAtTySFegAUsLqRJi+GBhXiKIn7AZTDFakQffGZwS6MPkaGD1KyX3k
 vtxUlmXdzfgkc0wBCxQwvTbWUGjWc0zRllgY5hHa/XbtkJrpeCvMSZ9A8k005ud3
 2hcY17km+JEKSxitKa6/T5OetT9dMgO1LxMdkoxdWXU1z0aYIYOmXG8RuaP6bf+e
 mmgKMX8GYeqO43LM7FyvgcLzL/hL+UAaOTkVefRYi03kuf4pbOoRuThEO0BryljK
 Tig=
 =l30v
 -----END PGP SIGNATURE-----

Merge tag 'dma-mapping-4.17-2' of git://git.infradead.org/users/hch/dma-mapping

Pull dma-mapping fix from Christoph Hellwig:
 "Fix for one swiotlb regression in 2.16 from Takashi"

* tag 'dma-mapping-4.17-2' of git://git.infradead.org/users/hch/dma-mapping:
  swiotlb: fix unexpected swiotlb_alloc_coherent failures
This commit is contained in:
Linus Torvalds 2018-04-12 11:00:48 -07:00
commit c5c177c5fd
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
lib/swiotlb.c
View File

@ -719,7 +719,7 @@ swiotlb_alloc_buffer(struct device *dev, size_t size, dma_addr_t *dma_handle,
goto out_warn;
*dma_handle = __phys_to_dma(dev, phys_addr);
if (dma_coherent_ok(dev, *dma_handle, size))
if (!dma_coherent_ok(dev, *dma_handle, size))
goto out_unmap;
memset(phys_to_virt(phys_addr), 0, size);