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authorDavid S. Miller <davem@davemloft.net>2009-02-24 03:50:29 -0800
committerDavid S. Miller <davem@davemloft.net>2009-02-24 03:50:29 -0800
commite70049b9e74267dd47e1ffa62302073487afcb48 (patch)
tree2cd000c0751ef31c9044b020d63f278cdf4f332d /drivers/s390
parentd18921a0e319ab512f8186b1b1142c7b8634c779 (diff)
parentf7e603ad8f78cd3b59e33fa72707da0cbabdf699 (diff)
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Diffstat (limited to 'drivers/s390')
-rw-r--r--drivers/s390/char/sclp.c5
-rw-r--r--drivers/s390/char/sclp_cmd.c5
2 files changed, 9 insertions, 1 deletions
diff --git a/drivers/s390/char/sclp.c b/drivers/s390/char/sclp.c
index 1fd8f2193ed..4377e93a43d 100644
--- 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);
diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c
index 50639049641..77ab6e34a10 100644
--- a/drivers/s390/char/sclp_cmd.c
+++ b/drivers/s390/char/sclp_cmd.c
@@ -19,6 +19,7 @@
#include <linux/memory.h>
#include <asm/chpid.h>
#include <asm/sclp.h>
+#include <asm/setup.h>
#include "sclp.h"
@@ -474,6 +475,10 @@ static void __init add_memory_merged(u16 rn)
goto skip_add;
if (start + size > VMEM_MAX_PHYS)
size = VMEM_MAX_PHYS - start;
+ if (memory_end_set && (start >= memory_end))
+ goto skip_add;
+ if (memory_end_set && (start + size > memory_end))
+ size = memory_end - start;
add_memory(0, start, size);
skip_add:
first_rn = rn;