author: Bartosz Golaszewski <bgolaszewski@baylibre.com> 2020-09-29 12:09:55 +0200
committer: Bartosz Golaszewski <bgolaszewski@baylibre.com> 2020-09-30 10:50:30 +0200
commit: 0fd16012adc0a994a7ce980a78e22e4de6220778
parent: 3795d7cc4fe13200dae9fade93441b4d5f123b74
Commit Summary:
Diffstat:
1 file changed, 20 insertions, 0 deletions
diff --git a/lib/string_helpers.c b/lib/string_helpers.c
index 963050c0283e..7f2d5fbaf243 100644
--- a/lib/string_helpers.c
+++ b/lib/string_helpers.c
@@ -649,3 +649,26 @@ char *kstrdup_quotable_file(struct file *file, gfp_t gfp)
return pathname;
}
EXPORT_SYMBOL_GPL(kstrdup_quotable_file);
+
+/**
+ * kfree_strarray - free a number of dynamically allocated strings contained
+ * in an array and the array itself
+ *
+ * @array: Dynamically allocated array of strings to free.
+ * @n: Number of strings (starting from the beginning of the array) to free.
+ *
+ * Passing a non-NULL @array and @n == 0 as well as NULL @array are valid
+ * use-cases. If @array is NULL, the function does nothing.
+ */
+void kfree_strarray(char **array, size_t n)
+{
+ unsigned int i;
+
+ if (!array)
+ return;
+
+ for (i = 0; i < n; i++)
+ kfree(array[i]);
+ kfree(array);
+}
+EXPORT_SYMBOL_GPL(kfree_strarray);