diff options
| -rw-r--r-- | arch/um/drivers/chan_kern.c | 22 |
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); } |