| Message ID | 20190703162700.32091-1-huangfq.daxian@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | None | expand |
Quoting Fuqian Huang (2019-07-03 09:27:00) > kmemdup is introduced to duplicate a region of memory in a neat way. > Rather than kmalloc/kzalloc + memcpy, which the programmer needs to > write the size twice (sometimes lead to mistakes), kmemdup improves > readability, leads to smaller code and also reduce the chances of mistakes. > Suggestion to use kmemdup rather than using kmalloc/kzalloc + memcpy. > > Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com> > --- Applied to clk-next
diff --git a/drivers/clk/ti/dpll.c b/drivers/clk/ti/dpll.c index 659dadb23279..f728d987ebac 100644 --- a/drivers/clk/ti/dpll.c +++ b/drivers/clk/ti/dpll.c @@ -291,14 +291,12 @@ static void __init of_ti_dpll_setup(struct device_node *node, struct dpll_data *dd = NULL; u8 dpll_mode = 0; - dd = kzalloc(sizeof(*dd), GFP_KERNEL); + dd = kmemdup(ddt, sizeof(*dd), GFP_KERNEL); clk_hw = kzalloc(sizeof(*clk_hw), GFP_KERNEL); init = kzalloc(sizeof(*init), GFP_KERNEL); if (!dd || !clk_hw || !init) goto cleanup; - memcpy(dd, ddt, sizeof(*dd)); - clk_hw->dpll_data = dd; clk_hw->ops = &clkhwops_omap3_dpll; clk_hw->hw.init = init;
kmemdup is introduced to duplicate a region of memory in a neat way. Rather than kmalloc/kzalloc + memcpy, which the programmer needs to write the size twice (sometimes lead to mistakes), kmemdup improves readability, leads to smaller code and also reduce the chances of mistakes. Suggestion to use kmemdup rather than using kmalloc/kzalloc + memcpy. Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com> --- Changes in v2: - Fix a typo in commit message (memset -> memcpy) drivers/clk/ti/dpll.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)