openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

dma-mapping regression fix for 5.4-rc2 

- revert an incorret hunk from a patch that caused problems
    on various arm boards (Andrey Smirnov)
 -----BEGIN PGP SIGNATURE-----
 
 iQI/BAABCgApFiEEgdbnc3r/njty3Iq9D55TZVIEUYMFAl2aFRoLHGhjaEBsc3Qu
 ZGUACgkQD55TZVIEUYMBeBAAuTsOh1amMUdsAJN67PJcHP8JkOlR21cjLVaKkvWh
 l5XnXITtlNvyzXH67jZuQL15+rQ/kTOkmSc5bIDZW7+sTW2Rwnq6bIQOZpBYKlol
 U/UTBtk26SliKoinlJekKWAA6o32PJU2oLOsTmqoCqH5k0aeKdNHAFPSw4fU3jbW
 U4Sv0uc6MI+PM9OM3H/T60qQPvziOkeDp4wAZZ5AO/kUbNgzUrbGatNk26QqgNbs
 NsAVQ3X/sgUAwXMtivo9nFUd2fuEIf9GueGVohGiW+2znWQ8AxY76/FgxzXICmMi
 S0YLqPrdlzzZ0K7k8enPvJo2hd0qh3yFtWyGx9fUt+EBXepp/hMTIRAEVUHpiiSg
 PDTU74TVtXwSYvIQA6jR1bwh9+aMyeDWDFzUwFQh34mahAsZsBKhNLAcpN2uNGv7
 XLL3Lqi58eIhaSaqxM4ASIsBS+FIiQiOdqq4eLVx+x6wxjNDTyZ+ynbWdNs8+SYh
 MIyjY3wibMwaXtFUBV6LgYtwBF/1pgFcu9jWz02HT7Od0c+Et04ihcXISH+w9fpB
 O5WFjo0Oag2HoNm1ODOlLu5DY9CSQftrv4zl0yTQgb1vFB3fPdtv43wIQ8SkVhVu
 kwuF4kgIAyRRoe7HCPK/FJjKiYCo6Y+3WZ/4X7ktddCpxjaVYfclv8pMotirCQPU
 SSo=
 =kS6W
 -----END PGP SIGNATURE-----

Merge tag 'dma-mapping-5.4-1' of git://git.infradead.org/users/hch/dma-mapping

Pull dma-mapping regression fix from Christoph Hellwig:
 "Revert an incorret hunk from a patch that caused problems on various
  arm boards (Andrey Smirnov)"

* tag 'dma-mapping-5.4-1' of git://git.infradead.org/users/hch/dma-mapping:
  dma-mapping: fix false positive warnings in dma_common_free_remap()
This commit is contained in:
Linus Torvalds 2019-10-06 11:10:15 -07:00
parent 43b815c6a8 2cf2aa6a69
commit 7cdb85df60
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
kernel/dma/remap.c
View File

@ -87,9 +87,9 @@ void *dma_common_contiguous_remap(struct page *page, size_t size,
*/
void dma_common_free_remap(void *cpu_addr, size_t size)
{
struct page **pages = dma_common_find_pages(cpu_addr);
struct vm_struct *area = find_vm_area(cpu_addr);
if (!pages) {
if (!area || area->flags != VM_DMA_COHERENT) {
WARN(1, "trying to free invalid coherent area: %p\n", cpu_addr);
return;
}