aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/media/dvb-core/dvb_ca_en50221.c
diff options
context:
space:
mode:
authorMarkus Elfring <elfring@users.sourceforge.net>2015-02-03 12:47:48 -0300
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2015-04-08 07:42:01 -0300
commita2bbf5d05918a3156e9854a7144a8b2806badb53 (patch)
tree65e0b5a38df1783e85cba3ffffa8c26833b3fadc /drivers/media/dvb-core/dvb_ca_en50221.c
parent07d0e554b5d10522b4cd6448108c0ad16403fea6 (diff)
[media] DVB: Less function calls in dvb_ca_en50221_init() after error detection
The functions "dvb_unregister_device" and "kfree" could still be called by the dvb_ca_en50221_init() function in the case that a previous resource allocation failed. * Corresponding details could be improved by adjustments for jump targets. * Let us delete also an unnecessary check for the variable "ca" there. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/dvb-core/dvb_ca_en50221.c')
-rw-r--r--drivers/media/dvb-core/dvb_ca_en50221.c23
1 files changed, 12 insertions, 11 deletions
diff --git a/drivers/media/dvb-core/dvb_ca_en50221.c b/drivers/media/dvb-core/dvb_ca_en50221.c
index 7a9dd25a4cce..72937756f60c 100644
--- a/drivers/media/dvb-core/dvb_ca_en50221.c
+++ b/drivers/media/dvb-core/dvb_ca_en50221.c
@@ -1678,14 +1678,14 @@ int dvb_ca_en50221_init(struct dvb_adapter *dvb_adapter,
/* initialise the system data */
if ((ca = kzalloc(sizeof(struct dvb_ca_private), GFP_KERNEL)) == NULL) {
ret = -ENOMEM;
- goto error;
+ goto exit;
}
ca->pub = pubca;
ca->flags = flags;
ca->slot_count = slot_count;
if ((ca->slot_info = kcalloc(slot_count, sizeof(struct dvb_ca_slot), GFP_KERNEL)) == NULL) {
ret = -ENOMEM;
- goto error;
+ goto free_ca;
}
init_waitqueue_head(&ca->wait_queue);
ca->open = 0;
@@ -1696,7 +1696,7 @@ int dvb_ca_en50221_init(struct dvb_adapter *dvb_adapter,
/* register the DVB device */
ret = dvb_register_device(dvb_adapter, &ca->dvbdev, &dvbdev_ca, ca, DVB_DEVICE_CA);
if (ret)
- goto error;
+ goto free_slot_info;
/* now initialise each slot */
for (i = 0; i < slot_count; i++) {
@@ -1711,7 +1711,7 @@ int dvb_ca_en50221_init(struct dvb_adapter *dvb_adapter,
if (signal_pending(current)) {
ret = -EINTR;
- goto error;
+ goto unregister_device;
}
mb();
@@ -1722,16 +1722,17 @@ int dvb_ca_en50221_init(struct dvb_adapter *dvb_adapter,
ret = PTR_ERR(ca->thread);
printk("dvb_ca_init: failed to start kernel_thread (%d)\n",
ret);
- goto error;
+ goto unregister_device;
}
return 0;
-error:
- if (ca != NULL) {
- dvb_unregister_device(ca->dvbdev);
- kfree(ca->slot_info);
- kfree(ca);
- }
+unregister_device:
+ dvb_unregister_device(ca->dvbdev);
+free_slot_info:
+ kfree(ca->slot_info);
+free_ca:
+ kfree(ca);
+exit:
pubca->private = NULL;
return ret;
}

Privacy Policy