Re: [PATCH] storage: pick return value of qemu-img

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On Mon, May 23, 2011 at 09:19:21AM +0200, Michal Privoznik wrote:
> qemu-img returns non-zero status on -h. Therefore we need to
> provide virCommandRun() a non-NULL exit status pointer.
> ---
>  src/storage/storage_backend.c |    3 ++-
>  1 files changed, 2 insertions(+), 1 deletions(-)
> 
> diff --git a/src/storage/storage_backend.c b/src/storage/storage_backend.c
> index f90425a..c8e19c8 100644
> --- a/src/storage/storage_backend.c
> +++ b/src/storage/storage_backend.c
> @@ -621,13 +621,14 @@ static int virStorageBackendQEMUImgBackingFormat(const char *qemuimg)
>      char *end;
>      char *tmp;
>      int ret = -1;
> +    int exitstatus;
>      virCommandPtr cmd = virCommandNewArgList(qemuimg, "-h", NULL);
>  
>      virCommandAddEnvString(cmd, "LC_ALL=C");
>      virCommandSetOutputBuffer(cmd, &help);
>      virCommandClearCaps(cmd);
>  
> -    if (virCommandRun(cmd, NULL) < 0)
> +    if (virCommandRun(cmd, &exitstatus) < 0)
>          goto cleanup;
>  
>      start = strstr(help, " create ");

ACK

Daniel
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