From: Geert Uytterhoeven Date: Fri, 26 Mar 2021 10:54:34 +0000 (+0100) Subject: clk: renesas: Zero init clk_init_data X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=f2fb4fe62390b293bc6edc04cc7002940c441359;p=uclinux-h8%2Flinux.git clk: renesas: Zero init clk_init_data As clk_core_populate_parent_map() checks clk_init_data.num_parents first, and checks clk_init_data.parent_names[] before clk_init_data.parent_data[] and clk_init_data.parent_hws[], leaving the latter uninitialized doesn't do harm for now. However, it is better to play it safe, and initialize all clk_init_data structures to zeroes, to avoid any current and future members containing uninitialized data. Remove a few explicit zero initializers, which are now superfluous. Signed-off-by: Geert Uytterhoeven Acked-by: Stephen Boyd Link: https://lore.kernel.org/r/20210326105434.1574796-1-geert+renesas@glider.be --- diff --git a/drivers/clk/renesas/clk-div6.c b/drivers/clk/renesas/clk-div6.c index 5ca183e70166..8fb68e703a6b 100644 --- a/drivers/clk/renesas/clk-div6.c +++ b/drivers/clk/renesas/clk-div6.c @@ -216,7 +216,7 @@ struct clk * __init cpg_div6_register(const char *name, struct raw_notifier_head *notifiers) { unsigned int valid_parents; - struct clk_init_data init; + struct clk_init_data init = {}; struct div6_clock *clock; struct clk *clk; unsigned int i; @@ -267,7 +267,6 @@ struct clk * __init cpg_div6_register(const char *name, /* Register the clock. */ init.name = name; init.ops = &cpg_div6_clock_ops; - init.flags = 0; init.parent_names = parent_names; init.num_parents = valid_parents; diff --git a/drivers/clk/renesas/clk-mstp.c b/drivers/clk/renesas/clk-mstp.c index 003e9ce45757..90804ac06fa5 100644 --- a/drivers/clk/renesas/clk-mstp.c +++ b/drivers/clk/renesas/clk-mstp.c @@ -150,7 +150,7 @@ static struct clk * __init cpg_mstp_clock_register(const char *name, const char *parent_name, unsigned int index, struct mstp_clock_group *group) { - struct clk_init_data init; + struct clk_init_data init = {}; struct mstp_clock *clock; struct clk *clk; diff --git a/drivers/clk/renesas/r9a06g032-clocks.c b/drivers/clk/renesas/r9a06g032-clocks.c index 1fe166e7f8bd..71b11443f6fc 100644 --- a/drivers/clk/renesas/r9a06g032-clocks.c +++ b/drivers/clk/renesas/r9a06g032-clocks.c @@ -504,7 +504,7 @@ r9a06g032_register_gate(struct r9a06g032_priv *clocks, { struct clk *clk; struct r9a06g032_clk_gate *g; - struct clk_init_data init; + struct clk_init_data init = {}; g = kzalloc(sizeof(*g), GFP_KERNEL); if (!g) @@ -674,7 +674,7 @@ r9a06g032_register_div(struct r9a06g032_priv *clocks, { struct r9a06g032_clk_div *div; struct clk *clk; - struct clk_init_data init; + struct clk_init_data init = {}; unsigned int i; div = kzalloc(sizeof(*div), GFP_KERNEL); @@ -758,7 +758,7 @@ r9a06g032_register_bitsel(struct r9a06g032_priv *clocks, { struct clk *clk; struct r9a06g032_clk_bitsel *g; - struct clk_init_data init; + struct clk_init_data init = {}; const char *names[2]; /* allocate the gate */ @@ -849,7 +849,7 @@ r9a06g032_register_dualgate(struct r9a06g032_priv *clocks, { struct r9a06g032_clk_dualgate *g; struct clk *clk; - struct clk_init_data init; + struct clk_init_data init = {}; /* allocate the gate */ g = kzalloc(sizeof(*g), GFP_KERNEL); diff --git a/drivers/clk/renesas/rcar-cpg-lib.c b/drivers/clk/renesas/rcar-cpg-lib.c index 7e7e5d1341d5..5678768ee1f2 100644 --- a/drivers/clk/renesas/rcar-cpg-lib.c +++ b/drivers/clk/renesas/rcar-cpg-lib.c @@ -226,7 +226,7 @@ struct clk * __init cpg_sd_clk_register(const char *name, void __iomem *base, unsigned int offset, const char *parent_name, struct raw_notifier_head *notifiers, bool skip_first) { - struct clk_init_data init; + struct clk_init_data init = {}; struct sd_clock *clock; struct clk *clk; u32 val; diff --git a/drivers/clk/renesas/rcar-gen2-cpg.c b/drivers/clk/renesas/rcar-gen2-cpg.c index d4fa3dc3e2a2..edae874fa2b6 100644 --- a/drivers/clk/renesas/rcar-gen2-cpg.c +++ b/drivers/clk/renesas/rcar-gen2-cpg.c @@ -137,7 +137,7 @@ static struct clk * __init cpg_z_clk_register(const char *name, const char *parent_name, void __iomem *base) { - struct clk_init_data init; + struct clk_init_data init = {}; struct cpg_z_clk *zclk; struct clk *clk; @@ -147,7 +147,6 @@ static struct clk * __init cpg_z_clk_register(const char *name, init.name = name; init.ops = &cpg_z_clk_ops; - init.flags = 0; init.parent_names = &parent_name; init.num_parents = 1; diff --git a/drivers/clk/renesas/rcar-gen3-cpg.c b/drivers/clk/renesas/rcar-gen3-cpg.c index 17826599e9dd..caa0f9414e45 100644 --- a/drivers/clk/renesas/rcar-gen3-cpg.c +++ b/drivers/clk/renesas/rcar-gen3-cpg.c @@ -143,7 +143,7 @@ static struct clk * __init cpg_z_clk_register(const char *name, unsigned int div, unsigned int offset) { - struct clk_init_data init; + struct clk_init_data init = {}; struct cpg_z_clk *zclk; struct clk *clk; diff --git a/drivers/clk/renesas/rcar-usb2-clock-sel.c b/drivers/clk/renesas/rcar-usb2-clock-sel.c index 3abafd78f7c8..34a85dc95beb 100644 --- a/drivers/clk/renesas/rcar-usb2-clock-sel.c +++ b/drivers/clk/renesas/rcar-usb2-clock-sel.c @@ -144,7 +144,7 @@ static int rcar_usb2_clock_sel_probe(struct platform_device *pdev) struct device_node *np = dev->of_node; struct usb2_clock_sel_priv *priv; struct clk *clk; - struct clk_init_data init; + struct clk_init_data init = {}; int ret; priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); @@ -188,9 +188,6 @@ static int rcar_usb2_clock_sel_probe(struct platform_device *pdev) init.name = "rcar_usb2_clock_sel"; init.ops = &usb2_clock_sel_clock_ops; - init.flags = 0; - init.parent_names = NULL; - init.num_parents = 0; priv->hw.init = &init; clk = clk_register(NULL, &priv->hw); diff --git a/drivers/clk/renesas/renesas-cpg-mssr.c b/drivers/clk/renesas/renesas-cpg-mssr.c index bffbc3d2faf5..fc531d35b269 100644 --- a/drivers/clk/renesas/renesas-cpg-mssr.c +++ b/drivers/clk/renesas/renesas-cpg-mssr.c @@ -408,7 +408,7 @@ static void __init cpg_mssr_register_mod_clk(const struct mssr_mod_clk *mod, struct mstp_clock *clock = NULL; struct device *dev = priv->dev; unsigned int id = mod->id; - struct clk_init_data init; + struct clk_init_data init = {}; struct clk *parent, *clk; const char *parent_name; unsigned int i;