diff options
| author | Logan Gunthorpe <logang@deltatee.com> | 2026-09-02 00:21:52 -0600 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2026-10-05 15:44:12 +0200 |
| commit | f3017892457d8bb664ea4b912910dc254e2dd825 (patch) | |
| tree | e75aa91fa369ed2116c7d1c094afafbdb0417a7e /tools/lib/python/kdoc | |
| parent | c691357acf76037b8a58ee4eb0ae07cd708a8ba1 (diff) | |
dmaengine: plx_dma: fix NULL pointer deref in plx_dma_isr()
plx_dma_create() registered the interrupt handler with request_irq()
before initializing plxdev->bar. If the device raised an interrupt in
that window, plx_dma_isr() would dereference the still-NULL bar.
Move the bar assignment ahead of request_irq() so everything the
handler can touch is initialized before it can run.
Reported-by: Sangyun Kim <sangyun.kim@snu.ac.kr>
Reported-by: Kyungwook Boo <bookyungwook@gmail.com>
Link: https://lore.kernel.org/all/20260610112121.676561-1-jjy600901@snu.ac.kr
Fixes: c2dbcaa8c672 ("dmaengine: plx-dma: Implement hardware initialization and cleanup")
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Link: https://lore.kernel.org/all/20260610112121.676561-1-jjy600901@snu.ac.kr/T/#u
Link: https://patch.msgid.link/20260902062153.31048-11-logang@deltatee.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'tools/lib/python/kdoc')
0 files changed, 0 insertions, 0 deletions