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| author | Kishon Vijay Abraham I <kishon@ti.com> | 2021-10-31 08:54:10 +0530 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2021-11-09 11:24:06 +0530 |
| commit | 5c6c6d60e4b489308ae4da8424c869f7cc53cd12 (patch) | |
| tree | fd876c0a3e8e498edeb3f283c82282825623f9a9 /drivers/iio | |
| parent | 2498363310e9b5e5de0e104709adc35c9f3ff7d9 (diff) | |
| download | linux-stable-5c6c6d60e4b489308ae4da8424c869f7cc53cd12.tar.gz linux-stable-5c6c6d60e4b489308ae4da8424c869f7cc53cd12.tar.bz2 linux-stable-5c6c6d60e4b489308ae4da8424c869f7cc53cd12.zip | |
dmaengine: ti: k3-udma: Set bchan to NULL if a channel request fail
bcdma_get_*() checks if bchan is already allocated by checking if it
has a NON NULL value. For the error cases, bchan will have error value
and bcdma_get_*() considers this as already allocated (PASS) since the
error values are NON NULL. This results in NULL pointer dereference
error while de-referencing bchan.
Reset the value of bchan to NULL if a channel request fails.
CC: stable@vger.kernel.org
Acked-by: Peter Ujfalusi <peter.ujfalusi@gmail.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Link: https://lore.kernel.org/r/20211031032411.27235-2-kishon@ti.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/iio')
0 files changed, 0 insertions, 0 deletions