mtd: phram: only call platform_driver_unregister if phram_setup fails

The check on ret and call to platform_driver_unregister is only required
in the code path where MODULE is not defined. Fix this by moving this
code into the relevant place after the call to phram_setup.

Signed-off-by: Colin Ian King <[e-mail]>
Signed-off-by: Miquel Raynal <[e-mail]>

drivers/mtd/devices/phram.c

···
 		return ret;
 
 #ifndef MODULE
-	if (phram_paramline[0])
+	if (phram_paramline[0]) {
 		ret = phram_setup(phram_paramline);
+		if (ret)
+			platform_driver_unregister(&phram_driver);
+	}
 	phram_init_called = 1;
 #endif
-
-	if (ret)
-		platform_driver_unregister(&phram_driver);
 
 	return ret;
 }