mirror of https://gitee.com/openkylin/linux.git
[ACPI] drivers/acpi/video.c: fix error path NULL pointer dereference
The Coverity checker spotted this bug in acpi_video_device_lcd_query_levels(). Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Len Brown <len.brown@intel.com>
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@ -323,7 +323,7 @@ acpi_video_device_lcd_query_levels(struct acpi_video_device *device,
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if (!ACPI_SUCCESS(status))
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return_VALUE(status);
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obj = (union acpi_object *)buffer.pointer;
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if (!obj && (obj->type != ACPI_TYPE_PACKAGE)) {
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if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) {
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ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid _BCL data\n"));
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status = -EFAULT;
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goto err;
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