From: yin-xiujiang yinxiujiang@kylinos.cn
kylin inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I4AHUH?from=project-issue CVE: NA
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the size of mpam_msc_err_str is _MPAM_NUM_ERRCODE, so device_errcode needs to be less than _MPAM_NUM_ERRCODE.
Signed-off-by: yin-xiujiang yinxiujiang@kylinos.cn Reviewed-by: Jian Cheng <cj.chengjian(a)huawei.com> Signed-off-by: Wang ShaoBo bobo.shaobowang@huawei.com --- arch/arm64/kernel/mpam/mpam_device.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/kernel/mpam/mpam_device.c b/arch/arm64/kernel/mpam/mpam_device.c index 86aaf52146bc..fd538fd22c6e 100644 --- a/arch/arm64/kernel/mpam/mpam_device.c +++ b/arch/arm64/kernel/mpam/mpam_device.c @@ -435,7 +435,7 @@ static irqreturn_t mpam_handle_error_irq(int irq, void *data) return IRQ_NONE;
/* No-one expects MPAM errors! */ - if (device_errcode <= _MPAM_NUM_ERRCODE) + if (device_errcode < _MPAM_NUM_ERRCODE) pr_err_ratelimited("unexpected error '%s' [esr:%x]\n", mpam_msc_err_str[device_errcode], device_esr);