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authorGustavo A. R. Silva <gustavo@embeddedor.com>2018-12-24 09:40:25 +0300
committerStephen Boyd <sboyd@kernel.org>2019-01-24 22:37:46 +0300
commit921e88a4f9649cbd44b4995ebe9a52b384e2fef4 (patch)
tree9bb65627b28c21451d7548e8baada95a5b4833aa /drivers/clk/imx/clk-imx7ulp.c
parentbfeffd155283772bbe78c6a05dec7c0128ee500c (diff)
downloadlinux-921e88a4f9649cbd44b4995ebe9a52b384e2fef4.tar.xz
clk: imx: imx7ulp: use struct_size() in kzalloc()
One of the more common cases of allocation size calculations is finding the size of a structure that has a zero-sized array at the end, along with memory for some number of elements for that array. For example: struct foo { int stuff; void *entry[]; }; instance = kzalloc(sizeof(struct foo) + sizeof(void *) * count, GFP_KERNEL); Instead of leaving these open-coded and prone to type mistakes, we can now use the new struct_size() helper: instance = kzalloc(struct_size(instance, entry, count), GFP_KERNEL); This issue was detected with the help of Coccinelle. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'drivers/clk/imx/clk-imx7ulp.c')
-rw-r--r--drivers/clk/imx/clk-imx7ulp.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/clk/imx/clk-imx7ulp.c b/drivers/clk/imx/clk-imx7ulp.c
index 4e18f629f823..ce306631e844 100644
--- a/drivers/clk/imx/clk-imx7ulp.c
+++ b/drivers/clk/imx/clk-imx7ulp.c
@@ -48,8 +48,8 @@ static void __init imx7ulp_clk_scg1_init(struct device_node *np)
struct clk_hw **clks;
void __iomem *base;
- clk_data = kzalloc(sizeof(*clk_data) + sizeof(*clk_data->hws) *
- IMX7ULP_CLK_SCG1_END, GFP_KERNEL);
+ clk_data = kzalloc(struct_size(clk_data, hws, IMX7ULP_CLK_SCG1_END),
+ GFP_KERNEL);
if (!clk_data)
return;
@@ -136,8 +136,8 @@ static void __init imx7ulp_clk_pcc2_init(struct device_node *np)
struct clk_hw **clks;
void __iomem *base;
- clk_data = kzalloc(sizeof(*clk_data) + sizeof(*clk_data->hws) *
- IMX7ULP_CLK_PCC2_END, GFP_KERNEL);
+ clk_data = kzalloc(struct_size(clk_data, hws, IMX7ULP_CLK_PCC2_END),
+ GFP_KERNEL);
if (!clk_data)
return;
@@ -183,8 +183,8 @@ static void __init imx7ulp_clk_pcc3_init(struct device_node *np)
struct clk_hw **clks;
void __iomem *base;
- clk_data = kzalloc(sizeof(*clk_data) + sizeof(*clk_data->hws) *
- IMX7ULP_CLK_PCC3_END, GFP_KERNEL);
+ clk_data = kzalloc(struct_size(clk_data, hws, IMX7ULP_CLK_PCC3_END),
+ GFP_KERNEL);
if (!clk_data)
return;
@@ -228,8 +228,8 @@ static void __init imx7ulp_clk_smc1_init(struct device_node *np)
struct clk_hw **clks;
void __iomem *base;
- clk_data = kzalloc(sizeof(*clk_data) + sizeof(*clk_data->hws) *
- IMX7ULP_CLK_SMC1_END, GFP_KERNEL);
+ clk_data = kzalloc(struct_size(clk_data, hws, IMX7ULP_CLK_SMC1_END),
+ GFP_KERNEL);
if (!clk_data)
return;