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authorJeff Dike <jdike@addtoit.com>2005-05-20 13:59:12 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-05-20 15:48:19 -0700
commit84ddaa8c86fc12ee1c3509be5ff3464821535c17 (patch)
treec181d478c5365a32d669d3d9b2899d4d4b06ab25
parent12f49643bc44c428919b210148a930496827dd26 (diff)
[PATCH] uml: Change printf to printk in console driver
From: Al Viro - we have error messages with KERN_ERR in them, so they should be printk-ed rather than printf-ed. Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: <viro@parcelfarce.linux.theplanet.co.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--arch/um/drivers/chan_kern.c22
1 files changed, 15 insertions, 7 deletions
diff --git a/arch/um/drivers/chan_kern.c b/arch/um/drivers/chan_kern.c
index 0150038af795..14a12d6b3df6 100644
--- a/arch/um/drivers/chan_kern.c
+++ b/arch/um/drivers/chan_kern.c
@@ -20,9 +20,17 @@
#include "os.h"
#ifdef CONFIG_NOCONFIG_CHAN
+
+/* The printk's here are wrong because we are complaining that there is no
+ * output device, but printk is printing to that output device. The user will
+ * never see the error. printf would be better, except it can't run on a
+ * kernel stack because it will overflow it.
+ * Use printk for now since that will avoid crashing.
+ */
+
static void *not_configged_init(char *str, int device, struct chan_opts *opts)
{
- printf(KERN_ERR "Using a channel type which is configured out of "
+ printk(KERN_ERR "Using a channel type which is configured out of "
"UML\n");
return(NULL);
}
@@ -30,27 +38,27 @@ static void *not_configged_init(char *str, int device, struct chan_opts *opts)
static int not_configged_open(int input, int output, int primary, void *data,
char **dev_out)
{
- printf(KERN_ERR "Using a channel type which is configured out of "
+ printk(KERN_ERR "Using a channel type which is configured out of "
"UML\n");
return(-ENODEV);
}
static void not_configged_close(int fd, void *data)
{
- printf(KERN_ERR "Using a channel type which is configured out of "
+ printk(KERN_ERR "Using a channel type which is configured out of "
"UML\n");
}
static int not_configged_read(int fd, char *c_out, void *data)
{
- printf(KERN_ERR "Using a channel type which is configured out of "
+ printk(KERN_ERR "Using a channel type which is configured out of "
"UML\n");
return(-EIO);
}
static int not_configged_write(int fd, const char *buf, int len, void *data)
{
- printf(KERN_ERR "Using a channel type which is configured out of "
+ printk(KERN_ERR "Using a channel type which is configured out of "
"UML\n");
return(-EIO);
}
@@ -58,7 +66,7 @@ static int not_configged_write(int fd, const char *buf, int len, void *data)
static int not_configged_console_write(int fd, const char *buf, int len,
void *data)
{
- printf(KERN_ERR "Using a channel type which is configured out of "
+ printk(KERN_ERR "Using a channel type which is configured out of "
"UML\n");
return(-EIO);
}
@@ -66,7 +74,7 @@ static int not_configged_console_write(int fd, const char *buf, int len,
static int not_configged_window_size(int fd, void *data, unsigned short *rows,
unsigned short *cols)
{
- printf(KERN_ERR "Using a channel type which is configured out of "
+ printk(KERN_ERR "Using a channel type which is configured out of "
"UML\n");
return(-ENODEV);
}