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path: root/drivers/s390/cio/itcw.c
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Diffstat (limited to 'drivers/s390/cio/itcw.c')
-rw-r--r--drivers/s390/cio/itcw.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/s390/cio/itcw.c b/drivers/s390/cio/itcw.c
index 19e46363348c..dbd3099c520e 100644
--- a/drivers/s390/cio/itcw.c
+++ b/drivers/s390/cio/itcw.c
@@ -9,6 +9,7 @@
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/string.h>
+#include <linux/io.h>
#include <linux/errno.h>
#include <linux/err.h>
#include <linux/module.h>
@@ -187,7 +188,7 @@ struct itcw *itcw_init(void *buffer, size_t size, int op, int intrg,
/* Check for 2G limit. */
start = (addr_t) buffer;
end = start + size;
- if (end > (1 << 31))
+ if ((virt_to_phys(buffer) + size) > (1 << 31))
return ERR_PTR(-EINVAL);
memset(buffer, 0, size);
/* ITCW. */