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| author | Kishon Vijay Abraham I <kishon@ti.com> | 2021-10-31 06:24:11 +0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2021-11-09 08:54:06 +0300 |
| commit | eb91224e47ec33a0a32c9be0ec0fcb3433e555fd (patch) | |
| tree | 4205f3761a61cc35fc9202465a59f60bd9b7aa48 /include/linux/fortify-string.h | |
| parent | 5c6c6d60e4b489308ae4da8424c869f7cc53cd12 (diff) | |
| download | linux-eb91224e47ec33a0a32c9be0ec0fcb3433e555fd.tar.xz | |
dmaengine: ti: k3-udma: Set r/tchan or rflow to NULL if request fail
udma_get_*() checks if rchan/tchan/rflow is already allocated by checking
if it has a NON NULL value. For the error cases, rchan/tchan/rflow will
have error value and udma_get_*() considers this as already allocated
(PASS) since the error values are NON NULL. This results in NULL pointer
dereference error while de-referencing rchan/tchan/rflow.
Reset the value of rchan/tchan/rflow 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/20211031032411.27235-3-kishon@ti.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'include/linux/fortify-string.h')
0 files changed, 0 insertions, 0 deletions