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Message-Id: <1386973529-4884-25-git-send-email-john.stultz@linaro.org> Date: Fri, 13 Dec 2013 14:23:58 -0800 From: John Stultz <john.stultz@...aro.org> To: LKML <linux-kernel@...r.kernel.org> Cc: Greg KH <gregkh@...uxfoundation.org>, Android Kernel Team <kernel-team@...roid.com>, Sumit Semwal <sumit.semwal@...aro.org>, Jesse Barker <jesse.barker@....com>, Colin Cross <ccross@...roid.com>, Rebecca Schultz Zavin <rebecca@...roid.com>, John Stultz <john.stultz@...aro.org> Subject: [PATCH 024/115] gpu: ion: Only map as much of the vma as the user requested From: Rebecca Schultz Zavin <rebecca@...roid.com> Signed-off-by: Rebecca Schultz Zavin <rebecca@...roid.com> [jstultz: modified patch to apply to staging directory] Signed-off-by: John Stultz <john.stultz@...aro.org> --- drivers/staging/android/ion/ion_system_heap.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/staging/android/ion/ion_system_heap.c b/drivers/staging/android/ion/ion_system_heap.c index 3f607df..7397bc4 100644 --- a/drivers/staging/android/ion/ion_system_heap.c +++ b/drivers/staging/android/ion/ion_system_heap.c @@ -192,6 +192,8 @@ int ion_system_heap_map_user(struct ion_heap *heap, struct ion_buffer *buffer, remap_pfn_range(vma, addr, page_to_pfn(sg_page(sg)), sg_dma_len(sg), vma->vm_page_prot); addr += sg_dma_len(sg); + if (addr >= vma->vm_end) + return 0; } return 0; } -- 1.8.3.2 -- 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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