diff mbox series

staging: axis-fifo: Use sysfs_emit()

Message ID 588327734f374b5f5cb5c4d5725d884fdc83663e.1707654406.git.christophe.jaillet@wanadoo.fr
State New
Headers
Series staging: axis-fifo: Use sysfs_emit() |

Commit Message

Christophe JAILLET Feb. 11, 2024, 12:27 p.m. UTC 
  sysfs_read() is anly called from _show() functions declared by
DEVICE_ATTR_RW().

Using sysfs_emit() is the preferred style and here, it saves a useless
copy and a temporary buffer in the stack.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
 drivers/staging/axis-fifo/axis-fifo.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)
diff mbox series

Patch

diff --git a/drivers/staging/axis-fifo/axis-fifo.c b/drivers/staging/axis-fifo/axis-fifo.c
index 727b956aa231..c51818c56dd2 100644
--- a/drivers/staging/axis-fifo/axis-fifo.c
+++ b/drivers/staging/axis-fifo/axis-fifo.c
@@ -165,14 +165,9 @@  static ssize_t sysfs_read(struct device *dev, char *buf,
 {
 	struct axis_fifo *fifo = dev_get_drvdata(dev);
 	unsigned int read_val;
-	unsigned int len;
-	char tmp[32];
 
 	read_val = ioread32(fifo->base_addr + addr_offset);
-	len =  snprintf(tmp, sizeof(tmp), "0x%x\n", read_val);
-	memcpy(buf, tmp, len);
-
-	return len;
+	return sysfs_emit(buf, "0x%x\n", read_val);
 }
 
 static ssize_t isr_store(struct device *dev, struct device_attribute *attr,