[S390] extmem: get rid of compile warning

Get rid of these:

arch/s390/mm/extmem.c: In function 'segment_modify_shared':
arch/s390/mm/extmem.c:622:3: warning: 'end_addr' may be used uninitialized in this function [-Wuninitialized]
arch/s390/mm/extmem.c:627:18: warning: 'start_addr' may be used uninitialized in this function [-Wuninitialized]
arch/s390/mm/extmem.c: In function 'segment_load':
arch/s390/mm/extmem.c:481:11: warning: 'end_addr' may be used uninitialized in this function [-Wuninitialized]
arch/s390/mm/extmem.c:480:18: warning: 'start_addr' may be used uninitialized in this function [-Wuninitialized]

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diff --git a/arch/s390/mm/extmem.c b/arch/s390/mm/extmem.c
index 214dd7b..075ddad 100644 (file)
--- a/arch/s390/mm/extmem.c
+++ b/arch/s390/mm/extmem.c
@@ -412,6 +412,7 @@ __segment_load (char *name, int do_nonshared, unsigned long *addr, unsigned long
        struct dcss_segment *seg;
        int rc, diag_cc;
 
+       start_addr = end_addr = 0;
        seg = kmalloc(sizeof(*seg), GFP_KERNEL | GFP_DMA);
        if (seg == NULL) {
                rc = -ENOMEM;
@@ -573,6 +574,7 @@ segment_modify_shared (char *name, int do_nonshared)
        unsigned long start_addr, end_addr, dummy;
        int rc, diag_cc;
 
+       start_addr = end_addr = 0;
        mutex_lock(&dcss_lock);
        seg = segment_by_name (name);
        if (seg == NULL) {