[PATCH v3 5/6] xl: make return type of create_domain() more consistent.

[Dario Faggioli <dario.faggioli@citrix.com>]

create_domain() is of uint32_t return type, because on
success it returns the domid of the new domain, and
uint32_t is what we typically use for domid-s.

However, on failure, it returns ERROR_FAIL or ERROR_INVAL,
which are -3 and -6. Callers assign the return value to an
'int rc' variable and then check for '(rc < 0)'.

Although things work, and no tool (compiler, Coverity, ecc.)
is complaining, using 'int' as return type seems better.

Signed-off-by: Dario Faggioli <dario.faggioli@citrix.com>
---
Cc: Ian Jackson <ian.jackson@eu.citrix.com>
Cc: Wei Liu <wei.liu2@citrix.com>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>
---
 tools/libxl/xl_cmdimpl.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/libxl/xl_cmdimpl.c b/tools/libxl/xl_cmdimpl.c
index 823cb46..d2ad8c8 100644
--- a/tools/libxl/xl_cmdimpl.c
+++ b/tools/libxl/xl_cmdimpl.c
@@ -2777,7 +2777,7 @@ static void evdisable_disk_ejects(libxl_evgen_disk_eject **diskws,
     }
 }
 
-static uint32_t create_domain(struct domain_create *dom_info)
+static int create_domain(struct domain_create *dom_info)
 {
     uint32_t domid = INVALID_DOMID;
 


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