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authorIra Snyder <iws@ovro.caltech.edu>2009-05-15 09:59:46 -0700
committerLi Yang <leoli@freescale.com>2009-05-22 16:54:42 +0800
commit2e077f8e8337e52eef3c39c24c31e103b11a0326 (patch)
tree686c9965c8304f5b6d59d3538e989674467ee129 /ipc
parent776c8943f2766f2819fafd88fdfbaf418ecd6e41 (diff)
fsldma: fix memory leak on error path in fsl_dma_prep_memcpy()
When preparing a memcpy operation, if the kernel fails to allocate memory for a link descriptor after the first link descriptor has already been allocated, then some memory will never be released. Fix the problem by walking the list of allocated descriptors backwards, and freeing the allocated descriptors back into the DMA pool. Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu> Signed-off-by: Li Yang <leoli@freescale.com>
Diffstat (limited to 'ipc')
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