'defer' in the loop

Reports defer statements inside loops.

Using defer in loops can lead to resource leaks or unpredictable execution order of statements.

Example:

func main() {
 for {
  field, err := db.Query("SELECT 1")
  if err != nil {
   // ...
  }
  defer field.Close()
  // ...
 }
}

Calls of defer row.Close() inside the loop are not executed until the function completes its execution. Not at the end of each step of the for loop. Such implementation might lead to overflow of the function's stack and other issues.

Locating this inspection

By ID

Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.

GoDeferInLoop

Via Settings dialog

Path to the inspection settings via IntelliJ Platform IDE Settings dialog, when you need to adjust inspection settings directly from your IDE.

Settings or Preferences | Editor | Inspections | Go | Control flow issues

Inspection ID: GoDeferInLoop

Suppressing Inspection

You can suppress this inspection by placing the following comment marker before the code fragment where you no longer want messages from this inspection to appear:

//noinspection GoDeferInLoop

More detailed instructions as well as other ways and options that you have can be found in the product documentation:

GoLand 2025.2

Inspection Details
By default bundled with:	GoLand 2025.2, Qodana for Go 2025.2,
Can be installed with plugin:	Go, 252.26654.0

Last modified: 18 September 2025