[PATCH] Revert "staging: dgap: remove unneeded kfree() in dgap_tty_register_ports()"

From: Daeseok Youn
Date: Thu May 29 2014 - 03:02:36 EST


This reverts commit 0ade4a34fd439d62df46937e8f3e584eb0879579.

This patch removes kfree for serial_ports in dgap_tty_register_ports()
if the "brd->printer_ports" allocation fails and serial_ports may be
freed by calling dgap_tty_uninit() within other patch.
That patch has an error handling but incomplete cleanup
so it need to call kfree() for brd->serial_ports in
dgap_tty_register_ports().

Conflicts:

drivers/staging/dgap/dgap.c
---
drivers/staging/dgap/dgap.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/drivers/staging/dgap/dgap.c b/drivers/staging/dgap/dgap.c
index 48c13c9..f0556ee 100644
--- a/drivers/staging/dgap/dgap.c
+++ b/drivers/staging/dgap/dgap.c
@@ -4145,8 +4145,10 @@ static int dgap_tty_register_ports(struct board_t *brd)

brd->printer_ports = kcalloc(brd->nasync, sizeof(*brd->printer_ports),
GFP_KERNEL);
- if (!brd->printer_ports)
+ if (brd->printer_ports == NULL) {
+ kfree(brd->serial_ports);
return -ENOMEM;
+ }

for (i = 0; i < brd->nasync; i++) {
tty_port_init(&brd->serial_ports[i]);
--
1.7.1

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