diff options
| author | Peter Oberparleiter <peter.oberparleiter@de.ibm.com> | 2006-02-01 03:06:35 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-02-01 08:53:24 -0800 |
| commit | 600b5d163d7434332539cac7be00f649cbbfedcc (patch) | |
| tree | 3a999e6576a8593bf8b49d1e768f7e990eb78a3a | |
| parent | 3633b0475eb269dcb85923b23b321505f06b9488 (diff) | |
[PATCH] s390: ccw_device_probe_console return value
The return code of ccw_device_probe_console() is not properly handled. It
should only return a valid ccw device pointer or a error value converted by
ERR_PTR. Fix the console driver code to check with IS_ERR instead against
NULL.
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | drivers/s390/char/con3215.c | 3 | ||||
| -rw-r--r-- | drivers/s390/char/con3270.c | 3 | ||||
| -rw-r--r-- | drivers/s390/cio/device.c | 2 |
3 files changed, 5 insertions, 3 deletions
diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c index 1f060914cfa..606f6ad285a 100644 --- a/drivers/s390/char/con3215.c +++ b/drivers/s390/char/con3215.c @@ -21,6 +21,7 @@ #include <linux/init.h> #include <linux/console.h> #include <linux/interrupt.h> +#include <linux/err.h> #include <linux/slab.h> #include <linux/bootmem.h> @@ -864,7 +865,7 @@ con3215_init(void) } cdev = ccw_device_probe_console(); - if (!cdev) + if (IS_ERR(cdev)) return -ENODEV; raw3215[0] = raw = (struct raw3215_info *) diff --git a/drivers/s390/char/con3270.c b/drivers/s390/char/con3270.c index c570a9f6ce9..ef607a1de55 100644 --- a/drivers/s390/char/con3270.c +++ b/drivers/s390/char/con3270.c @@ -15,6 +15,7 @@ #include <linux/interrupt.h> #include <linux/list.h> #include <linux/types.h> +#include <linux/err.h> #include <asm/ccwdev.h> #include <asm/cio.h> @@ -597,7 +598,7 @@ con3270_init(void) } cdev = ccw_device_probe_console(); - if (!cdev) + if (IS_ERR(cdev)) return -ENODEV; rp = raw3270_setup_console(cdev); if (IS_ERR(rp)) diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c index ceebf08e095..0b30921ce60 100644 --- a/drivers/s390/cio/device.c +++ b/drivers/s390/cio/device.c @@ -1012,7 +1012,7 @@ ccw_device_probe_console(void) int ret; if (xchg(&console_cdev_in_use, 1) != 0) - return NULL; + return ERR_PTR(-EBUSY); sch = cio_probe_console(); if (IS_ERR(sch)) { console_cdev_in_use = 0; |