* [PATCH] drm/xe/device: clean up on error in probe()
@ 2024-01-05 12:22 Dan Carpenter
2024-01-05 20:31 ` Matthew Brost
0 siblings, 1 reply; 2+ messages in thread
From: Dan Carpenter @ 2024-01-05 12:22 UTC (permalink / raw)
To: Himal Prasad Ghimiray
Cc: Lucas De Marchi, Oded Gabbay, Thomas Hellström,
Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann,
David Airlie, Daniel Vetter, Matt Roper, Rodrigo Vivi, intel-xe,
dri-devel, linux-kernel, kernel-janitors
This error path should clean up before returning.
Smatch detected this bug:
drivers/gpu/drm/xe/xe_device.c:487 xe_device_probe() warn: missing unwind goto?
Fixes: 4cb12b71923b ("drm/xe/xe2: Determine bios enablement for flat ccs on igfx")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
---
Speeking of static analysis, someone should probably run Sparse on this
driver. There are some missing annotations.
drivers/gpu/drm/xe/xe_mmio.h:65:72: warning: incorrect type in argument 1 (different address spaces)
drivers/gpu/drm/xe/xe_mmio.h:65:72: expected void const volatile [noderef] __iomem *addr
drivers/gpu/drm/xe/xe_mmio.h:65:72: got void *
drivers/gpu/drm/xe/xe_device.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/xe/xe_device.c b/drivers/gpu/drm/xe/xe_device.c
index d9ae77fe7382..b8d8da546670 100644
--- a/drivers/gpu/drm/xe/xe_device.c
+++ b/drivers/gpu/drm/xe/xe_device.c
@@ -484,7 +484,7 @@ int xe_device_probe(struct xe_device *xe)
err = xe_device_set_has_flat_ccs(xe);
if (err)
- return err;
+ goto err_irq_shutdown;
err = xe_mmio_probe_vram(xe);
if (err)
--
2.42.0
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] drm/xe/device: clean up on error in probe()
2024-01-05 12:22 [PATCH] drm/xe/device: clean up on error in probe() Dan Carpenter
@ 2024-01-05 20:31 ` Matthew Brost
0 siblings, 0 replies; 2+ messages in thread
From: Matthew Brost @ 2024-01-05 20:31 UTC (permalink / raw)
To: Dan Carpenter
Cc: Himal Prasad Ghimiray, Matt Roper, Thomas Hellström,
kernel-janitors, Lucas De Marchi, Oded Gabbay, linux-kernel,
Maxime Ripard, dri-devel, Thomas Zimmermann, Rodrigo Vivi,
intel-xe
On Fri, Jan 05, 2024 at 03:22:23PM +0300, Dan Carpenter wrote:
> This error path should clean up before returning.
>
> Smatch detected this bug:
> drivers/gpu/drm/xe/xe_device.c:487 xe_device_probe() warn: missing unwind goto?
>
> Fixes: 4cb12b71923b ("drm/xe/xe2: Determine bios enablement for flat ccs on igfx")
> Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
> ---
> Speeking of static analysis, someone should probably run Sparse on this
> driver. There are some missing annotations.
>
> drivers/gpu/drm/xe/xe_mmio.h:65:72: warning: incorrect type in argument 1 (different address spaces)
> drivers/gpu/drm/xe/xe_mmio.h:65:72: expected void const volatile [noderef] __iomem *addr
> drivers/gpu/drm/xe/xe_mmio.h:65:72: got void *
>
> drivers/gpu/drm/xe/xe_device.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/xe/xe_device.c b/drivers/gpu/drm/xe/xe_device.c
> index d9ae77fe7382..b8d8da546670 100644
> --- a/drivers/gpu/drm/xe/xe_device.c
> +++ b/drivers/gpu/drm/xe/xe_device.c
> @@ -484,7 +484,7 @@ int xe_device_probe(struct xe_device *xe)
>
> err = xe_device_set_has_flat_ccs(xe);
> if (err)
> - return err;
> + goto err_irq_shutdown;
>
> err = xe_mmio_probe_vram(xe);
> if (err)
> --
> 2.42.0
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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