[Qemu-devel] [PATCH] ppc/pnv: fix pnv_core_realize() error handling

Cédric Le Goater posted 1 patch 7 years, 4 months ago
Patches applied successfully (tree, apply log)
git fetch https://github.com/patchew-project/qemu tags/patchew/20180626142214.27801-1-clg@kaod.org
Test checkpatch passed
Test docker-mingw@fedora passed
Test docker-quick@centos7 passed
Test s390x passed
hw/ppc/pnv_core.c | 1 +
1 file changed, 1 insertion(+)
[Qemu-devel] [PATCH] ppc/pnv: fix pnv_core_realize() error handling
Posted by Cédric Le Goater 7 years, 4 months ago
commit d35aefa9ae15 ("ppc/pnv: introduce a new intc_create() operation
to the chip model") changed the object link in the pnv_core_realize()
routine but a return was forgotten in case of error, which can lead to
more problems afterwards (segv)

Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
 hw/ppc/pnv_core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/hw/ppc/pnv_core.c b/hw/ppc/pnv_core.c
index a9f129fc2c5f..9750464bf4a1 100644
--- a/hw/ppc/pnv_core.c
+++ b/hw/ppc/pnv_core.c
@@ -150,6 +150,7 @@ static void pnv_core_realize(DeviceState *dev, Error **errp)
     if (!chip) {
         error_propagate(errp, local_err);
         error_prepend(errp, "required link 'chip' not found: ");
+        return;
     }
 
     pc->threads = g_new(PowerPCCPU *, cc->nr_threads);
-- 
2.13.6


Re: [Qemu-devel] [Qemu-ppc] [PATCH] ppc/pnv: fix pnv_core_realize() error handling
Posted by Greg Kurz 7 years, 4 months ago
On Tue, 26 Jun 2018 16:22:14 +0200
Cédric Le Goater <clg@kaod.org> wrote:

> commit d35aefa9ae15 ("ppc/pnv: introduce a new intc_create() operation
> to the chip model") changed the object link in the pnv_core_realize()
> routine but a return was forgotten in case of error, which can lead to
> more problems afterwards (segv)
> 
> Signed-off-by: Cédric Le Goater <clg@kaod.org>
> ---

Reviewed-by: Greg Kurz <groug@kaod.org>

>  hw/ppc/pnv_core.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/hw/ppc/pnv_core.c b/hw/ppc/pnv_core.c
> index a9f129fc2c5f..9750464bf4a1 100644
> --- a/hw/ppc/pnv_core.c
> +++ b/hw/ppc/pnv_core.c
> @@ -150,6 +150,7 @@ static void pnv_core_realize(DeviceState *dev, Error **errp)
>      if (!chip) {
>          error_propagate(errp, local_err);
>          error_prepend(errp, "required link 'chip' not found: ");
> +        return;
>      }
>  
>      pc->threads = g_new(PowerPCCPU *, cc->nr_threads);


Re: [Qemu-devel] [PATCH] ppc/pnv: fix pnv_core_realize() error handling
Posted by Philippe Mathieu-Daudé 7 years, 4 months ago
On 06/26/2018 11:22 AM, Cédric Le Goater wrote:
> commit d35aefa9ae15 ("ppc/pnv: introduce a new intc_create() operation
> to the chip model") changed the object link in the pnv_core_realize()
> routine but a return was forgotten in case of error, which can lead to
> more problems afterwards (segv)
> 
> Signed-off-by: Cédric Le Goater <clg@kaod.org>

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

> ---
>  hw/ppc/pnv_core.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/hw/ppc/pnv_core.c b/hw/ppc/pnv_core.c
> index a9f129fc2c5f..9750464bf4a1 100644
> --- a/hw/ppc/pnv_core.c
> +++ b/hw/ppc/pnv_core.c
> @@ -150,6 +150,7 @@ static void pnv_core_realize(DeviceState *dev, Error **errp)
>      if (!chip) {
>          error_propagate(errp, local_err);
>          error_prepend(errp, "required link 'chip' not found: ");
> +        return;
>      }
>  
>      pc->threads = g_new(PowerPCCPU *, cc->nr_threads);
> 

Re: [Qemu-devel] [PATCH] ppc/pnv: fix pnv_core_realize() error handling
Posted by David Gibson 7 years, 4 months ago
On Tue, Jun 26, 2018 at 04:22:14PM +0200, Cédric Le Goater wrote:
> commit d35aefa9ae15 ("ppc/pnv: introduce a new intc_create() operation
> to the chip model") changed the object link in the pnv_core_realize()
> routine but a return was forgotten in case of error, which can lead to
> more problems afterwards (segv)
> 
> Signed-off-by: Cédric Le Goater <clg@kaod.org>

Applied to ppc-for-3.0, thanks.

> ---
>  hw/ppc/pnv_core.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/hw/ppc/pnv_core.c b/hw/ppc/pnv_core.c
> index a9f129fc2c5f..9750464bf4a1 100644
> --- a/hw/ppc/pnv_core.c
> +++ b/hw/ppc/pnv_core.c
> @@ -150,6 +150,7 @@ static void pnv_core_realize(DeviceState *dev, Error **errp)
>      if (!chip) {
>          error_propagate(errp, local_err);
>          error_prepend(errp, "required link 'chip' not found: ");
> +        return;
>      }
>  
>      pc->threads = g_new(PowerPCCPU *, cc->nr_threads);

-- 
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david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
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