From: Chen Ni <nichen@iscas.ac.cn> stable inclusion from stable-v6.6.33 commit 59767d1e30195d0a4e266bdd4eb1cb85d3cd601f category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IAD6H2 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=... -------------------------------- [ Upstream commit 2b1c1cf08a0addb6df42f16b37133dc7a351de29 ] As the possible failure of the dma_set_max_seg_size(), it should be better to check the return value of the dma_set_max_seg_size(). Fixes: e3fdb1894cfa ("dmaengine: idma64: set maximum allowed segment size for DMA") Signed-off-by: Chen Ni <nichen@iscas.ac.cn> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20240403024932.3342606-1-nichen@iscas.ac.cn Signed-off-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Wang Hai <wanghai38@huawei.com> --- drivers/dma/idma64.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/dma/idma64.c b/drivers/dma/idma64.c index f86939fa33b9..6fa797fd8501 100644 --- a/drivers/dma/idma64.c +++ b/drivers/dma/idma64.c @@ -598,7 +598,9 @@ static int idma64_probe(struct idma64_chip *chip) idma64->dma.dev = chip->sysdev; - dma_set_max_seg_size(idma64->dma.dev, IDMA64C_CTLH_BLOCK_TS_MASK); + ret = dma_set_max_seg_size(idma64->dma.dev, IDMA64C_CTLH_BLOCK_TS_MASK); + if (ret) + return ret; ret = dma_async_device_register(&idma64->dma); if (ret) -- 2.17.1