drm/amdgpu: Fix ras debugfs data parse
Unzero char is accepted by sscanf, so when data is structure but unexpectedly return error invalid; Signed-off-by: xinhui pan <xinhui.pan@amd.com> Reviewed-by: Feifei Xu <Feifei.Xu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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@ -241,7 +241,7 @@ static int amdgpu_ras_debugfs_ctrl_parse_data(struct file *f,
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op = 1;
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op = 1;
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else if (sscanf(str, "inject %32s %8s", block_name, err) == 2)
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else if (sscanf(str, "inject %32s %8s", block_name, err) == 2)
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op = 2;
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op = 2;
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else if (sscanf(str, "%32s", block_name) == 1)
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else if (str[0] && str[1] && str[2] && str[3])
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/* ascii string, but commands are not matched. */
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/* ascii string, but commands are not matched. */
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return -EINVAL;
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return -EINVAL;
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