Revision 1d5a474240407c38ca8c7484a656ee39f585399c authored by Martin Habets on 02 January 2022, 08:41:22 UTC, committed by Jakub Kicinski on 05 January 2022, 02:14:21 UTC
The RX page_ring is an optional feature that improves
performance. When allocation fails the driver can still
function, but possibly with a lower bandwidth.
Guard against dereferencing a NULL page_ring.
Fixes: 2768935a4660 ("sfc: reuse pages to avoid DMA mapping/unmapping costs")
Signed-off-by: Martin Habets <habetsm.xilinx@gmail.com>
Reported-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Link: https://lore.kernel.org/r/164111288276.5798.10330502993729113868.stgit@palantir17.mph.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
1 parent 6f89ecf
| File | Mode | Size |
|---|---|---|
| bridge | ||
| dp-mst | ||
| rfc | ||
| afbc.rst | -rw-r--r-- | 7.3 KB |
| amdgpu-dc.rst | -rw-r--r-- | 2.2 KB |
| amdgpu.rst | -rw-r--r-- | 7.0 KB |
| backlight.rst | -rw-r--r-- | 247 bytes |
| driver-uapi.rst | -rw-r--r-- | 122 bytes |
| drivers.rst | -rw-r--r-- | 318 bytes |
| drm-client.rst | -rw-r--r-- | 295 bytes |
| drm-internals.rst | -rw-r--r-- | 7.6 KB |
| drm-kms-helpers.rst | -rw-r--r-- | 10.7 KB |
| drm-kms.rst | -rw-r--r-- | 17.9 KB |
| drm-mm.rst | -rw-r--r-- | 18.1 KB |
| drm-uapi.rst | -rw-r--r-- | 19.7 KB |
| i915.rst | -rw-r--r-- | 21.8 KB |
| index.rst | -rw-r--r-- | 388 bytes |
| introduction.rst | -rw-r--r-- | 5.3 KB |
| kms-properties.csv | -rw-r--r-- | 7.5 KB |
| komeda-kms.rst | -rw-r--r-- | 15.2 KB |
| mcde.rst | -rw-r--r-- | 287 bytes |
| meson.rst | -rw-r--r-- | 1.7 KB |
| msm-crash-dump.rst | -rw-r--r-- | 2.4 KB |
| pl111.rst | -rw-r--r-- | 261 bytes |
| tegra.rst | -rw-r--r-- | 7.2 KB |
| todo.rst | -rw-r--r-- | 25.9 KB |
| tve200.rst | -rw-r--r-- | 204 bytes |
| v3d.rst | -rw-r--r-- | 759 bytes |
| vc4.rst | -rw-r--r-- | 2.1 KB |
| vga-switcheroo.rst | -rw-r--r-- | 1.9 KB |
| vgaarbiter.rst | -rw-r--r-- | 8.0 KB |
| vkms.rst | -rw-r--r-- | 7.2 KB |
| xen-front.rst | -rw-r--r-- | 1010 bytes |
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