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Date: Sat, 29 Nov 2014 09:31:57 +0800 From: Zeng Tao <prime.zeng@...wei.com> To: <gregkh@...uxfoundation.org>, <john.stultz@...aro.org>, <ccross@...roid.com>, <benjamin.gaignard@...aro.org>, <rebecca@...roid.com>, <fabio.estevam@...escale.com> CC: <devel@...verdev.osuosl.org>, <linux-kernel@...r.kernel.org> Subject: [PATCH] staging: ion : ion_cma_heap: fix bug for highmem cma when cma is located in highmem, virt_to_page will not work the right way, use pfn_to_page instead. Signed-off-by: Zeng Tao <prime.zeng@...wei.com> --- drivers/staging/android/ion/ion_cma_heap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/android/ion/ion_cma_heap.c b/drivers/staging/android/ion/ion_cma_heap.c index f8cabcb..cc45fc0 100644 --- a/drivers/staging/android/ion/ion_cma_heap.c +++ b/drivers/staging/android/ion/ion_cma_heap.c @@ -47,7 +47,7 @@ struct ion_cma_buffer_info { static int ion_cma_get_sgtable(struct device *dev, struct sg_table *sgt, void *cpu_addr, dma_addr_t handle, size_t size) { - struct page *page = virt_to_page(cpu_addr); + struct page *page = pfn_to_page(handle >> PAGE_SHIFT); int ret; ret = sg_alloc_table(sgt, 1, GFP_KERNEL); -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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