From: Ralf Baechle <ralf@linux-mips.org>
Date: Tue, 9 Jun 2015 07:35:34 +0000 (+0200)
Subject: MIPS: Loongson: Do not register 8250 platform device from module.
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=d9fb5660459819513d510e72caa3120a7cf41ee1;p=openwrt%2Fstaging%2Fblogic.git

MIPS: Loongson: Do not register 8250 platform device from module.

If CONFIG_SERIAL_8250 is set to m, the Loongson seria.ko module might get
unloaded while the serial driver modules are still loaded resulting in
stale references to the destroyed platform_device instance.

Anyway, platform devices should always be registered indicated what
devices are present, _not_ what drivers have been configured.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Reported-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Patchwork: https://patchwork.linux-mips.org/patch/10538/
---

diff --git a/arch/mips/loongson/common/Makefile b/arch/mips/loongson/common/Makefile
index e70c33fdb881..f2e8153e44f5 100644
--- a/arch/mips/loongson/common/Makefile
+++ b/arch/mips/loongson/common/Makefile
@@ -3,15 +3,13 @@
 #
 
 obj-y += setup.o init.o cmdline.o env.o time.o reset.o irq.o \
-    bonito-irq.o mem.o machtype.o platform.o
+    bonito-irq.o mem.o machtype.o platform.o serial.o
 obj-$(CONFIG_PCI) += pci.o
 
 #
 # Serial port support
 #
 obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
-loongson-serial-$(CONFIG_SERIAL_8250) := serial.o
-obj-y += $(loongson-serial-m) $(loongson-serial-y)
 obj-$(CONFIG_LOONGSON_UART_BASE) += uart_base.o
 obj-$(CONFIG_LOONGSON_MC146818) += rtc.o