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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2009-03-13 21:44:51 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2009-03-13 21:44:51 +0000
commit97fb44eb6bc01f4ffed4300e475aa15e44877375 (patch)
tree481ed6efd0babe7185cae04f2fd295426b36411d /drivers/s390/char/sclp.c
parente4707dd3e9d0cb57597b6568a5e51fea5d6fca41 (diff)
parent148854c65ea8046b045672fd49f4333aefaa3ab5 (diff)
Merge branch 'for-rmk' of git://git.pengutronix.de/git/imx/linux-2.6 into devel
Conflicts: arch/arm/mach-at91/gpio.c
Diffstat (limited to 'drivers/s390/char/sclp.c')
-rw-r--r--drivers/s390/char/sclp.c5
1 files changed, 4 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);