Commit 10319d0

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Fix: write returns either 0 or a negative error code on failure.

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Lines changed: 1 addition & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -40,7 +40,7 @@ void loop()`
`40`	`40`	`/* Transmit the CAN message, capture and display an`
`41`	`41`	`* error core in case of failure.`
`42`	`42`	`*/`
`43`		`- if (int const rc = CAN.write(msg); rc < 0)`
	`43`	`+ if (int const rc = CAN.write(msg); rc <= 0)`
`44`	`44`	`{`
`45`	`45`	`Serial.print ("CAN.write(...) failed with error code ");`
`46`	`46`	`Serial.println(rc);`

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