[Qemu-devel] [PATCH v2] qapi: treat all negative return of strtosz_suffix() as error

[Amos Kong]

strtosz_suffix() might return negative error, this patch fixes
the error handling.

This patch also changes to handle error in the if statement
rather than handle success specially, this will make this use
of strtosz_suffix consistent with all other uses.

Signed-off-by: Amos Kong <address@hidden>
Reviewed-by: Michael S. Tsirkin <address@hidden>
---
 qapi/opts-visitor.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/qapi/opts-visitor.c b/qapi/opts-visitor.c
index 5d830a2..87c1c78 100644
--- a/qapi/opts-visitor.c
+++ b/qapi/opts-visitor.c
@@ -472,13 +472,14 @@ opts_type_size(Visitor *v, uint64_t *obj, const char 
*name, Error **errp)
 
     val = strtosz_suffix(opt->str ? opt->str : "", &endptr,
                          STRTOSZ_DEFSUFFIX_B);
-    if (val != -1 && *endptr == '\0') {
-        *obj = val;
-        processed(ov, name);
+    if (val < 0 || *endptr) {
+        error_set(errp, QERR_INVALID_PARAMETER_VALUE, opt->name,
+                  "a size value representible as a non-negative int64");
         return;
     }
-    error_set(errp, QERR_INVALID_PARAMETER_VALUE, opt->name,
-              "a size value representible as a non-negative int64");
+
+    *obj = val;
+    processed(ov, name);
 }
 
 
-- 
1.9.0