diff options
| author | Gustavo A. R. Silva <gustavo@embeddedor.com> | 2019-06-03 16:53:35 +0200 |
|---|---|---|
| committer | Peter Rosin <peda@axentia.se> | 2019-06-10 09:28:56 +0200 |
| commit | 90af27317b63403bce3874566b71883fc1e1f459 (patch) | |
| tree | 3a84c85725a961590ee1a7d7c5d38ed7720fae87 /drivers/i2c/muxes | |
| parent | i2c: mux: arb-gpio: Rewrite to use GPIO descriptors (diff) | |
| download | linux-90af27317b63403bce3874566b71883fc1e1f459.tar.xz linux-90af27317b63403bce3874566b71883fc1e1f459.zip | |
i2c: mux: pinctrl: use flexible-array member and struct_size() helper
Update the code to use a flexible array member instead of a pointer in
structure i2c_mux_pinctrl and use the struct_size() helper.
Also, make use of the struct_size() helper instead of an open-coded
version in order to avoid any potential type mistakes, in particular
in the context in which this code is being used.
So, replace the following form:
sizeof(*mux) + num_names * sizeof(*mux->states)
with:
struct_size(mux, states, num_names)
This code was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Peter Rosin <peda@axentia.se>
Diffstat (limited to 'drivers/i2c/muxes')
| -rw-r--r-- | drivers/i2c/muxes/i2c-mux-pinctrl.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/i2c/muxes/i2c-mux-pinctrl.c b/drivers/i2c/muxes/i2c-mux-pinctrl.c index cc6818aabab5..ff3e8c9d4dd8 100644 --- a/drivers/i2c/muxes/i2c-mux-pinctrl.c +++ b/drivers/i2c/muxes/i2c-mux-pinctrl.c @@ -27,7 +27,7 @@ struct i2c_mux_pinctrl { struct pinctrl *pinctrl; - struct pinctrl_state **states; + struct pinctrl_state *states[]; }; static int i2c_mux_pinctrl_select(struct i2c_mux_core *muxc, u32 chan) @@ -104,14 +104,13 @@ static int i2c_mux_pinctrl_probe(struct platform_device *pdev) return PTR_ERR(parent); muxc = i2c_mux_alloc(parent, dev, num_names, - sizeof(*mux) + num_names * sizeof(*mux->states), + struct_size(mux, states, num_names), 0, i2c_mux_pinctrl_select, NULL); if (!muxc) { ret = -ENOMEM; goto err_put_parent; } mux = i2c_mux_priv(muxc); - mux->states = (struct pinctrl_state **)(mux + 1); platform_set_drvdata(pdev, muxc); |