[S390] monwriter kzalloc size.

Fix length on kzalloc for data buffer so as to not overwrite
unallocated storage.

Signed-off-by: Melissa Howland <melissah@us.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diff --git a/drivers/s390/char/monwriter.c b/drivers/s390/char/monwriter.c
index 4362ff2602446f67c3209eeb92e267f7bd5b62c4..abd02ed501cbe52cab031dadebf8087bf8290cf4 100644 (file)
--- a/drivers/s390/char/monwriter.c
+++ b/drivers/s390/char/monwriter.c
@@ -110,7 +110,7 @@ static int monwrite_new_hdr(struct mon_private *monpriv)
                monbuf = kzalloc(sizeof(struct mon_buf), GFP_KERNEL);
                if (!monbuf)
                        return -ENOMEM;
-               monbuf->data = kzalloc(monbuf->hdr.datalen,
+               monbuf->data = kzalloc(monhdr->datalen,
                                       GFP_KERNEL | GFP_DMA);
                if (!monbuf->data) {
                        kfree(monbuf);