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w1: w1_therm: use swap() to make code cleaner

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Use the macro 'swap()' defined in 'include/linux/minmax.h' to avoid
opencoding it.

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: David Yang <davidcomponentone@gmail.com>
Signed-off-by: Yang Guang <yang.guang5@zte.com.cn>
Link: https://lore.kernel.org/r/cb14f9e6e86cf8494ed2ddce6eec8ebd988908d9.1640077704.git.yang.guang5@zte.com.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Yang Guang 2021-12-21 17:15:59 +08:00 committed by Greg Kroah-Hartman
parent c95cc0d957
commit e233897b1f
1 changed files with 3 additions and 4 deletions
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7
drivers/w1/slaves/w1_therm.c
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@ -1785,7 +1785,7 @@ static ssize_t alarms_store(struct device *device,
u8 new_config_register[3]; /* array of data to be written */
int temp, ret;
char *token = NULL;
s8 tl, th, tt; /* 1 byte per value + temp ring order */
s8 tl, th; /* 1 byte per value + temp ring order */
char *p_args, *orig;
p_args = orig = kmalloc(size, GFP_KERNEL);
@ -1836,9 +1836,8 @@ static ssize_t alarms_store(struct device *device,
th = int_to_short(temp);
/* Reorder if required th and tl */
if (tl > th) {
tt = tl; tl = th; th = tt;
}
if (tl > th)
swap(tl, th);
/*
* Read the scratchpad to change only the required bits