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lib: string_helpers: provide kfree_strarray()

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There's a common pattern of dynamically allocating an array of char
pointers and then also dynamically allocating each string in this
array. Provide a helper for freeing such a string array with one call.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
This commit is contained in:
Bartosz Golaszewski
2020-09-29 12:09:55 +02:00
parent 3795d7cc4f
commit 0fd16012ad
2 changed files with 25 additions and 0 deletions
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include/linux/string_helpers.h
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@@ -94,4 +94,6 @@ char *kstrdup_quotable(const char *src, gfp_t gfp);
char *kstrdup_quotable_cmdline(struct task_struct *task, gfp_t gfp);
char *kstrdup_quotable_file(struct file *file, gfp_t gfp);
void kfree_strarray(char **array, size_t n);
#endif