From: mpiglet <mpiglet@outlook.com> openEuler inclusion category: bugfix bugzilla: https://bugzilla.openeuler.org/show_bug.cgi?id=339 CVE: NA Reference: https://gitee.com/openeuler/kernel/issues/I3U11D --------------------------------------------------- This fix check return value of acpi_get_table(). MPAM driver need to check return value, thus we need to check the return value of acpi_get_table(ACPI_SIG_PPTT, 0, &pptt). Signed-off-by: mpiglet <mpiglet@outlook.com> Reviewed-by: Jian Cheng <cj.chengjian(a)huawei.com> Signed-off-by: Wang ShaoBo <bobo.shaobowang@huawei.com> --- drivers/acpi/arm64/mpam.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/acpi/arm64/mpam.c b/drivers/acpi/arm64/mpam.c index 6c238f5a5c5a..fe870605f652 100644 --- a/drivers/acpi/arm64/mpam.c +++ b/drivers/acpi/arm64/mpam.c @@ -255,7 +255,7 @@ int __init acpi_mpam_parse(void) return -ENOENT; /* PPTT is optional, there may be no mpam cache controls */ - acpi_get_table(ACPI_SIG_PPTT, 0, &pptt); + status = acpi_get_table(ACPI_SIG_PPTT, 0, &pptt); if (ACPI_FAILURE(status)) pptt = NULL; -- 2.25.1