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| author | Amelie Delaunay <amelie.delaunay@foss.st.com> | 2023-10-04 18:35:28 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-10-19 23:08:54 +0200 |
| commit | 8e7dfe9c2ac8fc92859e68eb0a00f52e2f3a6ebc (patch) | |
| tree | c0758aab2978efe53207ccd9dbba9ebfcc3bf086 /net/sched/sch_dsmark.c | |
| parent | 0796c534242da7bc218ab1eefd6dacc48300302c (diff) | |
dmaengine: stm32-mdma: abort resume if no ongoing transfer
commit 81337b9a72dc58a5fa0ae8a042e8cb59f9bdec4a upstream.
chan->desc can be null, if transfer is terminated when resume is called,
leading to a NULL pointer when retrieving the hwdesc.
To avoid this case, check that chan->desc is not null and channel is
disabled (transfer previously paused or terminated).
Fixes: a4ffb13c8946 ("dmaengine: Add STM32 MDMA driver")
Signed-off-by: Amelie Delaunay <amelie.delaunay@foss.st.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20231004163531.2864160-1-amelie.delaunay@foss.st.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/sched/sch_dsmark.c')
0 files changed, 0 insertions, 0 deletions