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Diffstat (limited to 'samples/kfifo/bytestream-example.c')
-rw-r--r--samples/kfifo/bytestream-example.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/samples/kfifo/bytestream-example.c b/samples/kfifo/bytestream-example.c
index a94e6948b30..178061e87ff 100644
--- a/samples/kfifo/bytestream-example.c
+++ b/samples/kfifo/bytestream-example.c
@@ -44,7 +44,7 @@ static struct kfifo test;
static DECLARE_KFIFO(test, unsigned char, FIFO_SIZE);
#endif
-static unsigned char expected_result[FIFO_SIZE] = {
+static const unsigned char expected_result[FIFO_SIZE] = {
3, 4, 5, 6, 7, 8, 9, 0,
1, 20, 21, 22, 23, 24, 25, 26,
27, 28, 29, 30, 31, 32, 33, 34,
@@ -90,9 +90,14 @@ static int __init testfunc(void)
printk(KERN_INFO "queue len: %u\n", kfifo_len(&test));
+ /* show the first value without removing from the fifo */
+ if (kfifo_peek(&test, &i))
+ printk(KERN_INFO "%d\n", i);
+
/* check the correctness of all values in the fifo */
j = 0;
while (kfifo_get(&test, &i)) {
+ printk(KERN_INFO "item = %d\n", i);
if (i != expected_result[j++]) {
printk(KERN_WARNING "value mismatch: test failed\n");
return -EIO;