alloc_tty_driver was always assumed to succeed. Add code to check the return value and return -ENOMEM if alloc_tty_driver fails.
Reported-by: Fengguang Wu <[email protected]> Signed-off-by: Bill Pemberton <[email protected]> --- drivers/staging/dgrp/dgrp_tty.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/staging/dgrp/dgrp_tty.c b/drivers/staging/dgrp/dgrp_tty.c index 72f6fcf..e125b03 100644 --- a/drivers/staging/dgrp/dgrp_tty.c +++ b/drivers/staging/dgrp/dgrp_tty.c @@ -3173,6 +3173,9 @@ dgrp_tty_init(struct nd_struct *nd) */ nd->nd_serial_ttdriver = alloc_tty_driver(CHAN_MAX); + if (!nd->nd_serial_ttdriver) + return -ENOMEM; + sprintf(nd->nd_serial_name, "tty_dgrp_%s_", id); nd->nd_serial_ttdriver->owner = THIS_MODULE; @@ -3232,6 +3235,9 @@ dgrp_tty_init(struct nd_struct *nd) } nd->nd_callout_ttdriver = alloc_tty_driver(CHAN_MAX); + if (!nd->nd_callout_ttdriver) + return -ENOMEM; + sprintf(nd->nd_callout_name, "cu_dgrp_%s_", id); nd->nd_callout_ttdriver->owner = THIS_MODULE; @@ -3269,6 +3275,9 @@ dgrp_tty_init(struct nd_struct *nd) nd->nd_xprint_ttdriver = alloc_tty_driver(CHAN_MAX); + if (!nd->nd_xprint_ttdriver) + return -ENOMEM; + sprintf(nd->nd_xprint_name, "pr_dgrp_%s_", id); nd->nd_xprint_ttdriver->owner = THIS_MODULE; -- 1.7.12 _______________________________________________ devel mailing list [email protected] http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
