samples: grove_lcd: stop the app if device binding fails

Proceed to LCD programming only if device binding succeeds. Otherwise, dereferencing a NULL pointer will happen. This was caught by Coverity. Coverity-CID: 151986 Change-Id: Ibdb658f530203428aa3e53f358e0788fc1502b06 Signed-off-by: Baohong Liu <[email protected]>
k0d · Nov 18, 2016 · 5e892b7 · 5e892b7
1 parent 0ad8f51
commit 5e892b7
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/samples/grove/lcd/src/main.c b/samples/grove/lcd/src/main.c
@@ -55,6 +55,7 @@ void main(void)
 	glcd = device_get_binding(GROVE_LCD_NAME);
 	if (!glcd) {
 		printk("Grove LCD: Device not found.\n");
+		return;
 	}
 
 	/* Now configure the LCD the way we want it */