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ARM: lpc32xx: Use kmemdup to replace duplicating its implementation

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kmemdup is better than kmalloc() + memcpy(), and we do not like
open code. So just use kmemdup instead.

Signed-off-by: zhong jiang <zhongjiang@huawei.com>
[vzapolskiy: resolved a merge conflict]
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
This commit is contained in:
zhong jiang 2018-08-10 10:40:51 +08:00 committed by Vladimir Zapolskiy
parent ac04fd6569
commit 801da462e8
1 changed files with 2 additions and 5 deletions
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7
arch/arm/mach-lpc32xx/pm.c
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@ -86,14 +86,11 @@ static int lpc32xx_pm_enter(suspend_state_t state)
void *iram_swap_area;
/* Allocate some space for temporary IRAM storage */
iram_swap_area = kmalloc(lpc32xx_sys_suspend_sz, GFP_KERNEL);
iram_swap_area = kmemdup((void *)TEMP_IRAM_AREA,
lpc32xx_sys_suspend_sz, GFP_KERNEL);
if (!iram_swap_area)
return -ENOMEM;
/* Backup a small area of IRAM used for the suspend code */
memcpy(iram_swap_area, (void *) TEMP_IRAM_AREA,
lpc32xx_sys_suspend_sz);
/*
* Copy code to suspend system into IRAM. The suspend code
* needs to run from IRAM as DRAM may no longer be available