kpriv/linux-hardened
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

dmaengine-4.20-rc5

Browse source 
dmaengine fixes for v4.20-rc5
 
 This contains two fixes to at_hdmac which fixes long standing bus
 reported recently on serial transfers causing memory leak. These
 fixes were done by Richard Genoud.
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJcA5DaAAoJEHwUBw8lI4NHFtAP/AldipVXEyg6VbZGpLoIKcaP
 SdM8vMgeLJBLMdIpP6vxC/aZgHw2J9RFlKf+AljW2VAs3/fH8Nsfki7zNyA+yMzd
 lzyaGuzTIBC7JCz2ZY9OCPnLPeGO6YAFoZI8y2vQOYRsR6BpJd9iTQ0H0ncSFTxJ
 9S5cJ8nq4l9rRz26lKASfdPCPLtOWv03VTAM7NZNdb9Ai27SxRlBYGRQIamwoYsf
 xXmwRH+Kz8n1ajNmXtf75wX1X3yfR+/t+nJ7zOpcSb1+OQV2E+ZUiY+9u5BCr/Jp
 CHmzfy6G6f6YExc02FWvnfzsNODTyMnBce9CLJ5AsedZ7LsmcC8V8Y+K70w86w2A
 Tr1Jqt4Gj1C1vQ4ABkHkXf1ZIjMP0wCfoYN9PMBy7nfahfNXIW0JnqlHzRWkJRB1
 8amB4d63e4tdztLZxEVkNIm5ylIzbPSN3kSLYw7Pna4R8tk2wf4CtiZTn7CKlvjz
 m1hCkN80idh/Oaftpt9zJgGdkqaZ9hoUDL2Hq8ZzhGqWRD/u4ZLQctqH1Z1DxZjO
 3f6i2fsdjDpACfy5pd1Kj65zS/PdzWHx2Vws8H5BwFpBRgKdeK9yiYGPDFHZtVct
 hg6wmmb/sMaFgL9OAkmxvKInyFPMd0EQ+fhoVfHU8ON2rZXnsendy3e/MmD9xMer
 sosLDk9RuURxH9UBTFJ8
 =6BFf
 -----END PGP SIGNATURE-----

Merge tag 'dmaengine-fix-4.20-rc5' of git://git.infradead.org/users/vkoul/slave-dma

Pull dmaengine fixes from Vinod Koul:
 "This contains two fixes to at_hdmac which fixes long standing bus
  reported recently on serial transfers causing memory leak. These fixes
  were done by Richard Genoud"

* tag 'dmaengine-fix-4.20-rc5' of git://git.infradead.org/users/vkoul/slave-dma:
  dmaengine: at_hdmac: fix module unloading
  dmaengine: at_hdmac: fix memory leak in at_dma_xlate()
This commit is contained in:
Linus Torvalds 2018-12-02 12:07:27 -08:00
commit a234c7371f
1 changed files with 9 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
drivers/dma/at_hdmac.c
View file

@ -1641,6 +1641,12 @@ static void atc_free_chan_resources(struct dma_chan *chan)
atchan->descs_allocated = 0;
atchan->status = 0;
/*
* Free atslave allocated in at_dma_xlate()
*/
kfree(chan->private);
chan->private = NULL;
dev_vdbg(chan2dev(chan), "free_chan_resources: done\n");
}
@ -1675,7 +1681,7 @@ static struct dma_chan *at_dma_xlate(struct of_phandle_args *dma_spec,
dma_cap_zero(mask);
dma_cap_set(DMA_SLAVE, mask);
atslave = devm_kzalloc(&dmac_pdev->dev, sizeof(*atslave), GFP_KERNEL);
atslave = kzalloc(sizeof(*atslave), GFP_KERNEL);
if (!atslave)
return NULL;
@ -2000,6 +2006,8 @@ static int at_dma_remove(struct platform_device *pdev)
struct resource *io;
at_dma_off(atdma);
if (pdev->dev.of_node)
of_dma_controller_free(pdev->dev.of_node);
dma_async_device_unregister(&atdma->dma_common);
dma_pool_destroy(atdma->memset_pool);