Merge branch 'x86/doc' into x86/core

[cascardo/linux.git] / drivers / s390 / char / sclp.c

diff --git a/drivers/s390/char/sclp.c b/drivers/s390/char/sclp.c
index 1fd8f21..4377e93 100644 (file)
--- a/drivers/s390/char/sclp.c
+++ b/drivers/s390/char/sclp.c
@@ -280,8 +280,11 @@ sclp_dispatch_evbufs(struct sccb_header *sccb)
        rc = 0;
        for (offset = sizeof(struct sccb_header); offset < sccb->length;
             offset += evbuf->length) {
-               /* Search for event handler */
                evbuf = (struct evbuf_header *) ((addr_t) sccb + offset);
+               /* Check for malformed hardware response */
+               if (evbuf->length == 0)
+                       break;
+               /* Search for event handler */
                reg = NULL;
                list_for_each(l, &sclp_reg_list) {
                        reg = list_entry(l, struct sclp_register, list);