ACPI: APEI / ERST: Fix missing error handling in erst_reader()

[pandora-kernel.git] / drivers / acpi / apei / erst.c

diff --git a/drivers/acpi/apei/erst.c b/drivers/acpi/apei/erst.c
index 631b947..93ef09c 100644 (file)
--- a/drivers/acpi/apei/erst.c
+++ b/drivers/acpi/apei/erst.c
@@ -1019,7 +1019,7 @@ skip:
        /* The record may be cleared by others, try read next record */
        if (len == -ENOENT)
                goto skip;
-       else if (len < sizeof(*rcd)) {
+       else if (len < 0 || len < sizeof(*rcd)) {
                rc = -EIO;
                goto out;
        }