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parisc: pdc_stable: use strscpy() to instead of strncpy()

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The implementation of strscpy() is more robust and safer.
That's now the recommended way to copy NUL-terminated strings.

Signed-off-by: Xu Panda <xu.panda@zte.com.cn>
Signed-off-by: Yang Yang <yang.yang29@zte.com>
Signed-off-by: Helge Deller <deller@gmx.de>
This commit is contained in:
Xu Panda 2022-12-23 10:40:56 +08:00 committed by Helge Deller
parent b7bfaa761d
commit f2193bb2ee
1 changed files with 3 additions and 6 deletions
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9
drivers/parisc/pdc_stable.c
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@ -274,8 +274,7 @@ pdcspath_hwpath_write(struct pdcspath_entry *entry, const char *buf, size_t coun
/* We'll use a local copy of buf */
count = min_t(size_t, count, sizeof(in)-1);
strncpy(in, buf, count);
in[count] = '\0';
strscpy(in, buf, count + 1);
/* Let's clean up the target. 0xff is a blank pattern */
memset(&hwpath, 0xff, sizeof(hwpath));
@ -388,8 +387,7 @@ pdcspath_layer_write(struct pdcspath_entry *entry, const char *buf, size_t count
/* We'll use a local copy of buf */
count = min_t(size_t, count, sizeof(in)-1);
strncpy(in, buf, count);
in[count] = '\0';
strscpy(in, buf, count + 1);
/* Let's clean up the target. 0 is a blank pattern */
memset(&layers, 0, sizeof(layers));
@ -756,8 +754,7 @@ static ssize_t pdcs_auto_write(struct kobject *kobj,
/* We'll use a local copy of buf */
count = min_t(size_t, count, sizeof(in)-1);
strncpy(in, buf, count);
in[count] = '\0';
strscpy(in, buf, count + 1);
/* Current flags are stored in primary boot path entry */
pathentry = &pdcspath_entry_primary;