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dm: core: Fix devfdt_get_addr_ptr return value

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According to the description of devfdt_get_addr_ptr, this function should
return NULL on failure, but currently it returns (void *)FDT_ADDR_T_NONE.

Fix this by making devfdt_get_addr_ptr return NULL on failure, as
described in the function comments. Also, update the drivers currently
checking (void *)FDT_ADDR_T_NONE to check for NULL.

Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Ovidiu Panait 2020-08-03 22:17:35 +03:00 • committed by Simon Glass
parent 02291d83fd
commit 3fe69d3764
7 changed files with 13 additions and 13 deletions
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4
drivers/i2c/ast_i2c.c
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@ -93,8 +93,8 @@ static int ast_i2c_ofdata_to_platdata(struct udevice *dev)
int ret;
priv->regs = devfdt_get_addr_ptr(dev);
if (IS_ERR(priv->regs))
return PTR_ERR(priv->regs);
if (!priv->regs)
return -EINVAL;
ret = clk_get_by_index(dev, 0, &priv->clk);
if (ret < 0) {