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linux: Check for copyout errors in linux_fixup()
This is in preparation for annotating copyin() and related functions with __result_use_check. Reviewed by: olce, dchagin MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D43104
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@ -126,11 +126,14 @@ linux_fixup(uintptr_t *stack_base, struct image_params *imgp)
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argv = base;
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envp = base + (imgp->args->argc + 1);
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base--;
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suword(base, (intptr_t)envp);
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if (suword(base, (intptr_t)envp) != 0)
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return (EFAULT);
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base--;
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suword(base, (intptr_t)argv);
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if (suword(base, (intptr_t)argv) != 0)
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return (EFAULT);
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base--;
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suword(base, imgp->args->argc);
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if (suword(base, imgp->args->argc) != 0)
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return (EFAULT);
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*stack_base = (uintptr_t)base;
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return (0);
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}
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