[Xen-devel] [PATCH v2] xl: initialise rc before using it in vcpuset

[Wei Liu <wei.liu2@xxxxxxxxxx>]

In 5b725e56 (xl: improve return and exit codes of vcpu related
functions), the return value of libxl_cpu_bitmap_alloc was not stored in
rc anymore. Yet the subsequent fprintf still used that.

Reinstate the original implementation, that is, to store return value of
libxl_cpu_bitmap_alloc in rc before using rc.

Signed-off-by: Wei Liu <wei.liu2@xxxxxxxxxx>
---
Cc: Ian Campbell <ian.campbell@xxxxxxxxxx>
Cc: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
Cc: Dario Faggioli <dario.faggioli@xxxxxxxxxx>
Cc: Harmandeep Kaur <write.harmandeep@xxxxxxxxx>
Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

v2: print rc.
---
 tools/libxl/xl_cmdimpl.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/libxl/xl_cmdimpl.c b/tools/libxl/xl_cmdimpl.c
index 2756d2f..9b6b42c 100644
--- a/tools/libxl/xl_cmdimpl.c
+++ b/tools/libxl/xl_cmdimpl.c
@@ -5473,7 +5473,8 @@ static int vcpuset(uint32_t domid, const char* nr_vcpus, 
int check_host)
         if (rc)
             return 1;
     }
-    if (libxl_cpu_bitmap_alloc(ctx, &cpumap, max_vcpus)) {
+    rc = libxl_cpu_bitmap_alloc(ctx, &cpumap, max_vcpus);
+    if (rc) {
         fprintf(stderr, "libxl_cpu_bitmap_alloc failed, rc: %d\n", rc);
         return 1;
     }
-- 
2.1.4


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