[patch 14/14] s390: fix memory leak in vmcp.

[Martin Schwidefsky]

From: Christian Borntraeger <cborntra@xxxxxxxxxx>

[patch 14/14] s390: fix memory leak in vmcp.

If vmcp is interrupted by a signal the vmcp command buffer is not
freed. Found by Pete Zaitcev.

Signed-off-by: Christian Borntraeger <cborntra@xxxxxxxxxx>
Signed-off-by: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
---

 drivers/s390/char/vmcp.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletion(-)

diff -urpN linux-2.6/drivers/s390/char/vmcp.c linux-2.6-patched/drivers/s390/char/vmcp.c
--- linux-2.6/drivers/s390/char/vmcp.c	2005-10-28 02:02:08.000000000 +0200
+++ linux-2.6-patched/drivers/s390/char/vmcp.c	2005-10-28 14:04:56.000000000 +0200
@@ -103,8 +103,10 @@ vmcp_write(struct file *file, const char
 	}
 	cmd[count] = '\0';
 	session = (struct vmcp_session *)file->private_data;
-	if (down_interruptible(&session->mutex))
+	if (down_interruptible(&session->mutex)) {
+		kfree(cmd);
 		return -ERESTARTSYS;
+	}
 	if (!session->response)
 		session->response = (char *)__get_free_pages(GFP_KERNEL
 						| __GFP_REPEAT 	| GFP_DMA,
-
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