dmaengine: imx-sdma: Fix error checking in sdma_event_remap
[ Upstream commit7104b9cb35
] of_parse_phandle() returns NULL on errors, rather than error pointers. Using NULL check on grp_np to fix this. Fixes:d078cd1b41
("dmaengine: imx-sdma: Add imx6sx platform support") Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Link: https://lore.kernel.org/r/20220308064952.15743-1-linmq006@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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@ -1528,7 +1528,7 @@ static int sdma_event_remap(struct sdma_engine *sdma)
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u32 reg, val, shift, num_map, i;
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u32 reg, val, shift, num_map, i;
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int ret = 0;
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int ret = 0;
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if (IS_ERR(np) || IS_ERR(gpr_np))
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if (IS_ERR(np) || !gpr_np)
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goto out;
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goto out;
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event_remap = of_find_property(np, propname, NULL);
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event_remap = of_find_property(np, propname, NULL);
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@ -1576,7 +1576,7 @@ static int sdma_event_remap(struct sdma_engine *sdma)
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}
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}
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out:
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out:
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if (!IS_ERR(gpr_np))
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if (gpr_np)
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of_node_put(gpr_np);
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of_node_put(gpr_np);
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return ret;
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return ret;
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