[PATCH] Fix incorrect stable backport to bas_gigaset

From: Stefan Bader
Date: Tue Aug 25 2009 - 11:35:56 EST


BugLink: http://bugs.launchpad.net/bugs/417732

commit 56f7efe48d57dda9e59e23ab161c118271cce815
Author: Tilman Schmidt <tilman@xxxxxxx>
Date: Wed Apr 15 03:25:43 2009 -0700

bas_gigaset: correctly allocate USB interrupt transfer buffer

[ Upstream commit 170ebf85160dd128e1c4206cc197cce7d1424705 ]

This incorrect backport to 2.6.28.10 placed some code into the probe function
which used a pointer before it was initialized. Moving this to the correct
place (as it is in upstream).

Signed-off-by: Stefan Bader <stefan.bader@xxxxxxxxxxxxx>
Acked-by: Tim Gardner <tim.gardner@xxxxxxxxxxxxx>
Acked-by: Steve Conklin <steve.conklin@xxxxxxxxxxxxx>
---
drivers/isdn/gigaset/bas-gigaset.c | 16 +++++++++-------
1 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/drivers/isdn/gigaset/bas-gigaset.c b/drivers/isdn/gigaset/bas-gigaset.c
index fcec2df..3990eae 100644
--- a/drivers/isdn/gigaset/bas-gigaset.c
+++ b/drivers/isdn/gigaset/bas-gigaset.c
@@ -2140,8 +2140,16 @@ static int gigaset_initcshw(struct cardstate *cs)
struct bas_cardstate *ucs;

cs->hw.bas = ucs = kmalloc(sizeof *ucs, GFP_KERNEL);
- if (!ucs)
+ if (!ucs) {
+ pr_err("out of memory\n");
+ return 0;
+ }
+ ucs->int_in_buf = kmalloc(IP_MSGSIZE, GFP_KERNEL);
+ if (!ucs->int_in_buf) {
+ kfree(ucs);
+ pr_err("out of memory\n");
return 0;
+ }

ucs->urb_cmd_in = NULL;
ucs->urb_cmd_out = NULL;
@@ -2236,12 +2244,6 @@ static int gigaset_probe(struct usb_interface *interface,
}
hostif = interface->cur_altsetting;
}
- ucs->int_in_buf = kmalloc(IP_MSGSIZE, GFP_KERNEL);
- if (!ucs->int_in_buf) {
- kfree(ucs);
- pr_err("out of memory\n");
- return 0;
- }

/* Reject application specific interfaces
*/
--
1.6.0.4


--------------030708040605020203050902--
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/