Re: [Qemu-devel] [PATCH] hw/unicore32: fix a kernel_filename!=NULL assertion error in puv3.c

[Marcel Apfelbaum <marcel@redhat.com>]

On 03/30/2017 05:57 PM, Suramya Shah wrote:
> Signed-off-by: Suramya Shah <shah.suramya@gmail.com>

Hi,

Thank you for contributing to QEMU project.

I suggest to avoid details in the subject, use something like:
    "hw/unicore32: remove wrong assertion in puv machine init"

> ---
> Running QEMU with qemu-system-unicore32 without the kernel parameter results in an assertion error.


The description should appear before the "---" separator.
The patch cannot be applied.

Please use git format-patch to prepare the patch.
Please run ./scripts/checkpatch.pl before sending the patch.

> Fix this by..

This is not enough for a description.
Try to briefly explain how/why you fixed it.

     "Assert should not be used to check user provided parameters.
      Report an error and exit instead"

Thanks,
Marcel

>  hw/unicore32/puv3.c | 7 +++++--
>  1 file changed, 5 insertions(+), 2 deletions(-)
>
> diff --git a/hw/unicore32/puv3.c b/hw/unicore32/puv3.c
> index 032078f..2c17cc9 100644
> --- a/hw/unicore32/puv3.c
> +++ b/hw/unicore32/puv3.c
> @@ -93,8 +93,11 @@ static void puv3_load_kernel(const char *kernel_filename)
>      if (kernel_filename == NULL && qtest_enabled()) {
>          return;
>      }
> -    assert(kernel_filename != NULL);
> -
> +    if (kernel_filename == NULL) {
> +        error_report("No kernel found");
> +        exit(1);
> +    }
> +
>      /* only zImage format supported */
>      size = load_image_targphys(kernel_filename, KERNEL_LOAD_ADDR,
>              KERNEL_MAX_SIZE);
>