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(parent: b9b3f82) | patch
dmaengine i.MX sdma: check sg entries for valid addresses and lengths
authorSascha Hauer <s.hauer@pengutronix.de>
Wed, 12 Jan 2011 12:02:28 +0000 (13:02 +0100)
committerSascha Hauer <s.hauer@pengutronix.de>
Mon, 31 Jan 2011 11:33:08 +0000 (12:33 +0100)
commit1fa81c270da4d8dffa84fcca448654a10ed0a5dc
tree2582ad91ea12c462745b2ef11d0fccfee73acee5tree | snapshot
parentb9b3f82f94b52ebb0bbdf6cd77ccc5e8ee3f53b5commit | diff
dmaengine i.MX sdma: check sg entries for valid addresses and lengths

This patch lets sdma_prep_slave_sg fail if the entries of an
sg list do not start on multiples of the word size or if the
lengths are not multiple of the word size.
Also, catch the previously unhandled DMA_SLAVE_BUSWIDTH_8_BYTES
and DMA_SLAVE_BUSWIDTH_UNDEFINED cases.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
drivers/dma/imx-sdma.c diff | blob | history
Domain: System / Kernel;