ACPI, APEI, Fix acpi_pre_map() return value
After we ioremap() a new region, we call __acpi_try_ioremap() to see whether another thread has already mapped the same region. This check clobbers "vaddr", so compute the return value of acpi_pre_map() using the ioremap() result "map->vaddr" instead. v2: Modified the unsuitable description of patch. v3: Removed unlikely() check and made description simpler. Signed-off-by: NJin Dongming <jin.dongming@np.css.fujitsu.com> Reviewed-by: NAndi Kleen <ak@linux.intel.com> Signed-off-by: NHuang Ying <ying.huang@intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
Showing
想要评论请 注册 或 登录