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base repository: allenbh/linux
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base: master
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head repository: allenbh/linux
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compare: dma/t-bug-ioat-reshape
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  • 2 commits
  • 1 file changed
  • 1 contributor

Commits on Aug 25, 2015

  1. dmaengine: ioatdma: fix u16 overflow in reshape 

    If the allocation order is 16, then the u16 index will overflow and wrap
to zero instead of being equal or greater than 1 << 16.  The loop
condition will always be true, and the loop will run until all the
memory resources are depleted.

Change the type of index 'i' to u32, so that it is large enough to store
a value equal or greater than 1 << 16.

Signed-off-by: Allen Hubbe <[email protected]>
    Allen Hubbe authored and Allen Hubbe committed Aug 25, 2015
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    cdde152 View commit details
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  2. dmaengine: ioatdma: fix u16 overflow in cleanup 

    If the allocation order is 16, then the u16 count will overflow and wrap
to zero when assigned the value 1 << 16.

Change the type of 'total_descs' to int, so that it is large enough to
store a value equal or greater than 1 << 16.

Signed-off-by: Allen Hubbe <[email protected]>
    Allen Hubbe authored and Allen Hubbe committed Aug 25, 2015
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    18a3f90 View commit details
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