3.0-stable review patch. If anyone has any objections, please let me know.
------------------ From: Tomoya MORINAGA <[email protected]> commit c43f1508686e8e4746012bf87995085eeb0f5307 upstream. Currently, executing suspend/hibernation, memory access violation occurs. In pch_dma_save_regs() called by suspend(), you can see the following code. static void pch_dma_save_regs(struct pch_dma *pd) { snip... list_for_each_entry_safe(chan, _c, &pd->dma.channels, device_node) { pd_chan = to_pd_chan(chan); pd->ch_regs[i].dev_addr = channel_readl(pd_chan, DEV_ADDR); pd->ch_regs[i].mem_addr = channel_readl(pd_chan, MEM_ADDR); pd->ch_regs[i].size = channel_readl(pd_chan, SIZE); pd->ch_regs[i].next = channel_readl(pd_chan, NEXT); i++; } } Max loop count is 12 defined at pci_table. So, this caused memory access violation. This patch fixes the issue - Modify array size (MAX_CHAN_NR) Signed-off-by: Tomoya MORINAGA <[email protected]> Signed-off-by: Vinod Koul <[email protected]> Signed-off-by: Tomoya MORINAGA <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/dma/pch_dma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/dma/pch_dma.c +++ b/drivers/dma/pch_dma.c @@ -60,7 +60,7 @@ #define DMA_DESC_FOLLOW_WITHOUT_IRQ 0x2 #define DMA_DESC_FOLLOW_WITH_IRQ 0x3 -#define MAX_CHAN_NR 8 +#define MAX_CHAN_NR 12 #define DMA_MASK_CTL0_MODE 0x33333333 #define DMA_MASK_CTL2_MODE 0x00003333 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
