[S390] missing check in dasd_eer_open.

Check the return value of kzalloc in dasd_eer_open.

Signed-off-by: Stefan Weinhuber <wein@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diff --git a/drivers/s390/block/dasd_eer.c b/drivers/s390/block/dasd_eer.c
index 2d8af709947fb09fefdb32c2bb8b195845f11d69..9d574ede1b1d1ab10103657419961feb82bbe6e5 100644 (file)
--- a/drivers/s390/block/dasd_eer.c
+++ b/drivers/s390/block/dasd_eer.c
@@ -521,6 +521,8 @@ static int dasd_eer_open(struct inode *inp, struct file *filp)
        unsigned long flags;
 
        eerb = kzalloc(sizeof(struct eerbuffer), GFP_KERNEL);
+       if (!eerb)
+               return -ENOMEM;
        eerb->buffer_page_count = eer_pages;
        if (eerb->buffer_page_count < 1 ||
            eerb->buffer_page_count > INT_MAX / PAGE_SIZE) {