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authorLinus Torvalds <torvalds@linux-foundation.org>2011-04-07 12:48:45 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-04-07 12:48:45 -0700
commit26cf445721763d61b08ce394f8bdbd4c5610b563 (patch)
treea26099dd232b5d0071604787a9eb27b37602645f /drivers/tty
parent8b9686ff4ddfdf45662024edd567920e6db87beb (diff)
parent99b662e511e08230e8422e77cbe4fd31ed173df6 (diff)
downloadlinux-26cf445721763d61b08ce394f8bdbd4c5610b563.tar.gz
Merge branch 'sh-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* 'sh-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
  sh: select ARCH_NO_SYSDEV_OPS.
  sh: fix build error in board-sh7757lcr.c
  sh: landisk: Remove whitespace
  sh: landisk: Remove mv_nr_irqs
  sh: sh-sci: Fix double initialization by serial_console_setup
  serial: sh-sci: prevent setup of uninitialized serial console
  dma: shdma: add checking the DMAOR_AE in sh_dmae_err
Diffstat (limited to 'drivers/tty')
-rw-r--r--drivers/tty/serial/sh-sci.c25
1 files changed, 12 insertions, 13 deletions
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index a7b083f4ea78..920a6f929c8b 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -1836,6 +1836,12 @@ static int __devinit serial_console_setup(struct console *co, char *options)
 	sci_port = &sci_ports[co->index];
 	port = &sci_port->port;
 
+	/*
+	 * Refuse to handle uninitialized ports.
+	 */
+	if (!port->ops)
+		return -ENODEV;
+
 	ret = sci_remap_port(port);
 	if (unlikely(ret != 0))
 		return ret;
@@ -1866,13 +1872,6 @@ static struct console serial_console = {
 	.data		= &sci_uart_driver,
 };
 
-static int __init sci_console_init(void)
-{
-	register_console(&serial_console);
-	return 0;
-}
-console_initcall(sci_console_init);
-
 static struct console early_serial_console = {
 	.name           = "early_ttySC",
 	.write          = serial_console_write,
@@ -1901,18 +1900,18 @@ static int __devinit sci_probe_earlyprintk(struct platform_device *pdev)
 	register_console(&early_serial_console);
 	return 0;
 }
+
+#define SCI_CONSOLE	(&serial_console)
+
 #else
 static inline int __devinit sci_probe_earlyprintk(struct platform_device *pdev)
 {
 	return -EINVAL;
 }
-#endif /* CONFIG_SERIAL_SH_SCI_CONSOLE */
 
-#if defined(CONFIG_SERIAL_SH_SCI_CONSOLE)
-#define SCI_CONSOLE	(&serial_console)
-#else
-#define SCI_CONSOLE	0
-#endif
+#define SCI_CONSOLE	NULL
+
+#endif /* CONFIG_SERIAL_SH_SCI_CONSOLE */
 
 static char banner[] __initdata =
 	KERN_INFO "SuperH SCI(F) driver initialized\n";