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path: root/drivers/misc/fastrpc.c
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Diffstat (limited to 'drivers/misc/fastrpc.c')
-rw-r--r--drivers/misc/fastrpc.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
index beda610e6b30..ad6ced454655 100644
--- a/drivers/misc/fastrpc.c
+++ b/drivers/misc/fastrpc.c
@@ -814,10 +814,12 @@ static int fastrpc_get_args(u32 kernel, struct fastrpc_invoke_ctx *ctx)
rpra[i].pv = (u64) ctx->args[i].ptr;
pages[i].addr = ctx->maps[i]->phys;
+ mmap_read_lock(current->mm);
vma = find_vma(current->mm, ctx->args[i].ptr);
if (vma)
pages[i].addr += ctx->args[i].ptr -
vma->vm_start;
+ mmap_read_unlock(current->mm);
pg_start = (ctx->args[i].ptr & PAGE_MASK) >> PAGE_SHIFT;
pg_end = ((ctx->args[i].ptr + len - 1) & PAGE_MASK) >>