Fix a NULL dereference when unplugging a device. The default value of err_msg wants to be "" in case the driver doesn't modify it.
Signed-off-by: Jeff Dike <[EMAIL PROTECTED]> -- arch/um/drivers/mconsole_kern.c | 3 +++ 1 file changed, 3 insertions(+) Index: linux-2.6.21-mm/arch/um/drivers/mconsole_kern.c =================================================================== --- linux-2.6.21-mm.orig/arch/um/drivers/mconsole_kern.c 2007-03-27 11:35:47.000000000 -0400 +++ linux-2.6.21-mm/arch/um/drivers/mconsole_kern.c 2007-03-27 11:46:28.000000000 -0400 @@ -614,6 +614,9 @@ void mconsole_remove(struct mc_request * err_msg = NULL; err = (*dev->remove)(n, &err_msg); switch(err){ + case 0: + err_msg = ""; + break; case -ENODEV: if(err_msg == NULL) err_msg = "Device doesn't exist"; - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/