| Message ID | 1440713317-2549-1-git-send-email-kamal@canonical.com |
|---|---|
| State | New |
| Headers | show |
diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c index bdf40b5..c068ef1 100644 --- a/drivers/dma/pl330.c +++ b/drivers/dma/pl330.c @@ -2521,6 +2521,7 @@ pl330_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dst, desc->rqcfg.brst_len = 1; desc->rqcfg.brst_len = get_burst_len(desc, len); + desc->bytes_requested = len; desc->txd.flags = flags;
This is a note to let you know that I have just added a patch titled dmaengine: pl330: Fix overflow when reporting residue in memcpy to the linux-3.19.y-queue branch of the 3.19.y-ckt extended stable tree which can be found at: http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.19.y-queue This patch is scheduled to be released in version 3.19.8-ckt6. If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.19.y-ckt tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Kamal ------ From 050dc8c9c10330d969879fda7bea02a71c87d1e5 Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski <k.kozlowski@samsung.com> Date: Mon, 15 Jun 2015 17:25:16 +0900 Subject: dmaengine: pl330: Fix overflow when reporting residue in memcpy commit ae128293d97404f491dc76f1843c7adacfec3441 upstream. During memcpy operations the residue was always set to an u32 overflowed value. In pl330_tx_status() function number of currently transferred bytes was subtracted from internal "bytes_requested" field. However this "bytes_requested" was not initialized at start to length of memcpy buffer so transferred bytes were subtracted from 0 causing overflow. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Fixes: aee4d1fac887 ("dmaengine: pl330: improve pl330_tx_status() function") Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Kamal Mostafa <kamal@canonical.com> --- drivers/dma/pl330.c | 1 + 1 file changed, 1 insertion(+) -- 1.9.1