fs/romfs: romfs_read return the partail read size instead error code

xiaoxiang781216 · GUIDINGLI · commit cca7b7cb37d0 · 2024-10-11T10:42:20.000+08:00
Signed-off-by: Xiang Xiao &lt;xiaoxiang@xiaomi.com&gt;
diff --git a/fs/romfs/fs_romfs.c b/fs/romfs/fs_romfs.c
@@ -492,7 +492,7 @@ static ssize_t romfs_read(FAR struct file *filep, FAR char *buffer,
 
 errout_with_lock:
   nxrmutex_unlock(&rm->rm_lock);
-  return ret < 0 ? ret : readsize;
+  return readsize ? readsize : ret;
 }
 
 /****************************************************************************

Original file line number	Diff line number	Diff line change
`@@ -492,7 +492,7 @@ static ssize_t romfs_read(FAR struct file filep, FAR char buffer,`
`492`	`492`
`493`	`493`	`errout_with_lock:`
`494`	`494`	`nxrmutex_unlock(&rm->rm_lock);`
`495`		`- return ret < 0 ? ret : readsize;`
	`495`	`+ return readsize ? readsize : ret;`
`496`	`496`	`}`
`497`	`497`
`498`	`498`	`/****************************************************************************`