Commit b11b9665 authored Sep 18, 2019 by Isaac J. Manjarres

ion: msm: Prevent log-spam from ION dmabuf mmap failures



Use rate-limited prints when an ION buffer should not be
mapped to userspace. This prevents the kernel logs from being
flooded by failures triggered by continuous userspace requests
to map a buffer that should not be mapped to it.

Change-Id: I5f4a1bc1fab7424588e68a55cb18aa28e969841c
Signed-off-by: Isaac J. Manjarres <isaacm@codeaurora.org>

parent 2e94d445

drivers/staging/android/ion/heaps/msm_ion_dma_buf.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -283,7 +283,7 @@ static int msm_ion_mmap(struct dma_buf dmabuf, struct vm_area_struct vma)
		int ret = 0;

		if (!hlos_accessible_buffer(buffer)) {
		pr_err("%s: this buffer cannot be mapped to userspace\n",
		pr_err_ratelimited("%s: this buffer cannot be mapped to userspace\n",
		__func__);
		return -EINVAL;
		}