diff mbox series

[2/2] qemu-img: Avoid setting ret to unused value in img_convert()

Message ID 1486744104-15590-3-git-send-email-peter.maydell@linaro.org
State Superseded
Headers show
Series qemu-img: fix coverity nits | expand

Commit Message

Peter Maydell Feb. 10, 2017, 4:28 p.m. UTC
Coverity points out that we assign the return value from
bdrv_snapshot_load_tmp() to 'ret' in img_convert(), but then
never use that variable. (We check for failure by looking
at local_err instead.) Drop the unused assignment, bringing
the call into line with the following call to
bdrv_snapshot_laod_tmp_by_id_or_name().

(Fixes CID 1247240.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

---
 qemu-img.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

-- 
2.7.4

Comments

Philippe Mathieu-Daudé Feb. 11, 2017, 3:57 a.m. UTC | #1
On 02/10/2017 01:28 PM, Peter Maydell wrote:
> Coverity points out that we assign the return value from

> bdrv_snapshot_load_tmp() to 'ret' in img_convert(), but then

> never use that variable. (We check for failure by looking

> at local_err instead.) Drop the unused assignment, bringing

> the call into line with the following call to

> bdrv_snapshot_laod_tmp_by_id_or_name().

>

> (Fixes CID 1247240.)

>

> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>


Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>


> ---

>  qemu-img.c | 8 ++++----

>  1 file changed, 4 insertions(+), 4 deletions(-)

>

> diff --git a/qemu-img.c b/qemu-img.c

> index aa71588..9227d3a 100644

> --- a/qemu-img.c

> +++ b/qemu-img.c

> @@ -1966,10 +1966,10 @@ static int img_convert(int argc, char **argv)

>      }

>

>      if (sn_opts) {

> -        ret = bdrv_snapshot_load_tmp(bs[0],

> -                                     qemu_opt_get(sn_opts, SNAPSHOT_OPT_ID),

> -                                     qemu_opt_get(sn_opts, SNAPSHOT_OPT_NAME),

> -                                     &local_err);

> +        bdrv_snapshot_load_tmp(bs[0],

> +                               qemu_opt_get(sn_opts, SNAPSHOT_OPT_ID),

> +                               qemu_opt_get(sn_opts, SNAPSHOT_OPT_NAME),

> +                               &local_err);

>      } else if (snapshot_name != NULL) {

>          if (bs_n > 1) {

>              error_report("No support for concatenating multiple snapshot");

>
diff mbox series

Patch

diff --git a/qemu-img.c b/qemu-img.c
index aa71588..9227d3a 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -1966,10 +1966,10 @@  static int img_convert(int argc, char **argv)
     }
 
     if (sn_opts) {
-        ret = bdrv_snapshot_load_tmp(bs[0],
-                                     qemu_opt_get(sn_opts, SNAPSHOT_OPT_ID),
-                                     qemu_opt_get(sn_opts, SNAPSHOT_OPT_NAME),
-                                     &local_err);
+        bdrv_snapshot_load_tmp(bs[0],
+                               qemu_opt_get(sn_opts, SNAPSHOT_OPT_ID),
+                               qemu_opt_get(sn_opts, SNAPSHOT_OPT_NAME),
+                               &local_err);
     } else if (snapshot_name != NULL) {
         if (bs_n > 1) {
             error_report("No support for concatenating multiple snapshot");