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| author | Alexander Shishkin <alexander.shishkin@linux.intel.com> | 2022-07-05 11:26:34 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-07-08 15:42:56 +0200 |
| commit | ac12ad3ccf6d386e64a9d6a890595a2509d24edd (patch) | |
| tree | 657a5e04106709c951dac90a7e0dc731ffcf993f /drivers/vfio | |
| parent | 82f76a4a720791d889de775b5f7541d601efc8bd (diff) | |
| download | linux-stable-ac12ad3ccf6d386e64a9d6a890595a2509d24edd.tar.gz linux-stable-ac12ad3ccf6d386e64a9d6a890595a2509d24edd.tar.bz2 linux-stable-ac12ad3ccf6d386e64a9d6a890595a2509d24edd.zip | |
intel_th: msu: Fix vmalloced buffers
After commit f5ff79fddf0e ("dma-mapping: remove CONFIG_DMA_REMAP") there's
a chance of DMA buffer getting allocated via vmalloc(), which messes up
the mmapping code:
> RIP: msc_mmap_fault [intel_th_msu]
> Call Trace:
> <TASK>
> __do_fault
> do_fault
...
Fix this by accounting for vmalloc possibility.
Fixes: ba39bd830605 ("intel_th: msu: Switch over to scatterlist")
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Link: https://lore.kernel.org/r/20220705082637.59979-4-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/vfio')
0 files changed, 0 insertions, 0 deletions