diff mbox series

[v1,15/17] thunderbolt: retimer: Change nvmem reg_read/write return type

Message ID 20240605180238.2617808-6-joychakr@google.com
State New
Headers show
Series None | expand

Commit Message

Joy Chakraborty June 5, 2024, 6:02 p.m. UTC 
Change nvmem read/write function definition return type to ssize_t.

Signed-off-by: Joy Chakraborty <joychakr@google.com>
---
 drivers/thunderbolt/retimer.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/thunderbolt/retimer.c b/drivers/thunderbolt/retimer.c
index 6eaaa5074ce8..fa52ea11ec28 100644
--- a/drivers/thunderbolt/retimer.c
+++ b/drivers/thunderbolt/retimer.c
@@ -32,7 +32,7 @@  int tb_retimer_nvm_read(struct tb_retimer *rt, unsigned int address, void *buf,
 	return usb4_port_retimer_nvm_read(rt->port, rt->index, address, buf, size);
 }
 
-static int nvm_read(void *priv, unsigned int offset, void *val, size_t bytes)
+static ssize_t nvm_read(void *priv, unsigned int offset, void *val, size_t bytes)
 {
 	struct tb_nvm *nvm = priv;
 	struct tb_retimer *rt = tb_to_retimer(nvm->dev);
@@ -52,10 +52,10 @@  static int nvm_read(void *priv, unsigned int offset, void *val, size_t bytes)
 	pm_runtime_mark_last_busy(&rt->dev);
 	pm_runtime_put_autosuspend(&rt->dev);
 
-	return ret;
+	return ret < 0 ? ret : bytes;
 }
 
-static int nvm_write(void *priv, unsigned int offset, void *val, size_t bytes)
+static ssize_t nvm_write(void *priv, unsigned int offset, void *val, size_t bytes)
 {
 	struct tb_nvm *nvm = priv;
 	struct tb_retimer *rt = tb_to_retimer(nvm->dev);
@@ -67,7 +67,7 @@  static int nvm_write(void *priv, unsigned int offset, void *val, size_t bytes)
 	ret = tb_nvm_write_buf(nvm, offset, val, bytes);
 	mutex_unlock(&rt->tb->lock);
 
-	return ret;
+	return ret < 0 ? ret : bytes;
 }
 
 static int tb_retimer_nvm_add(struct tb_retimer *rt)