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authorMarkus Elfring <elfring@users.sourceforge.net>2017-08-28 05:55:16 -0400
committerMauro Carvalho Chehab <mchehab@s-opensource.com>2017-09-23 08:20:57 -0400
commit2d3da59ff163b2aa805de0fc65ba933a735b00cd (patch)
tree4c370d1bf357c25d8941627ed8968ab295f1f8ee /drivers
parentd303b7c5b2660d93ba0dd2bf99b7dfa7bb93de73 (diff)
media: drivers: improve a size determination
Replace the specification of a data structure by a pointer dereference as the parameter for the operator "sizeof" to make the corresponding size determination a bit safer according to the Linux coding style convention. This issue was detected by using the Coccinelle software. [mchehab@s-opensoure.com: merge similar patches into one] Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/media/common/cypress_firmware.c2
-rw-r--r--drivers/media/common/siano/smscoreapi.c14
-rw-r--r--drivers/media/dvb-frontends/as102_fe.c2
-rw-r--r--drivers/media/dvb-frontends/cx24113.c3
-rw-r--r--drivers/media/dvb-frontends/cx24116.c2
-rw-r--r--drivers/media/dvb-frontends/ds3000.c2
-rw-r--r--drivers/media/dvb-frontends/mb86a20s.c2
-rw-r--r--drivers/media/dvb-frontends/sp2.c2
-rw-r--r--drivers/media/i2c/adv7842.c2
-rw-r--r--drivers/media/pci/cx18/cx18-driver.c2
-rw-r--r--drivers/media/pci/mantis/hopper_cards.c2
-rw-r--r--drivers/media/pci/mantis/mantis_cards.c2
-rw-r--r--drivers/media/pci/saa7146/hexium_gemini.c2
-rw-r--r--drivers/media/pci/saa7146/hexium_orion.c2
-rw-r--r--drivers/media/pci/saa7164/saa7164-buffer.c4
-rw-r--r--drivers/media/platform/atmel/atmel-isc.c2
-rw-r--r--drivers/media/usb/zr364xx/zr364xx.c2
17 files changed, 23 insertions, 26 deletions
diff --git a/drivers/media/common/cypress_firmware.c b/drivers/media/common/cypress_firmware.c
index bfe47bc5f716..8895158c1962 100644
--- a/drivers/media/common/cypress_firmware.c
+++ b/drivers/media/common/cypress_firmware.c
@@ -74,7 +74,7 @@ int cypress_load_firmware(struct usb_device *udev,
struct hexline *hx;
int ret, pos = 0;
- hx = kmalloc(sizeof(struct hexline), GFP_KERNEL);
+ hx = kmalloc(sizeof(*hx), GFP_KERNEL);
if (!hx)
return -ENOMEM;
diff --git a/drivers/media/common/siano/smscoreapi.c b/drivers/media/common/siano/smscoreapi.c
index 889b486fbc72..ad1c41f727b1 100644
--- a/drivers/media/common/siano/smscoreapi.c
+++ b/drivers/media/common/siano/smscoreapi.c
@@ -447,7 +447,7 @@ static struct smscore_registry_entry_t *smscore_find_registry(char *devpath)
return entry;
}
}
- entry = kmalloc(sizeof(struct smscore_registry_entry_t), GFP_KERNEL);
+ entry = kmalloc(sizeof(*entry), GFP_KERNEL);
if (entry) {
entry->mode = default_mode;
strcpy(entry->devpath, devpath);
@@ -536,9 +536,7 @@ int smscore_register_hotplug(hotplug_t hotplug)
int rc = 0;
kmutex_lock(&g_smscore_deviceslock);
-
- notifyee = kmalloc(sizeof(struct smscore_device_notifyee_t),
- GFP_KERNEL);
+ notifyee = kmalloc(sizeof(*notifyee), GFP_KERNEL);
if (notifyee) {
/* now notify callback about existing devices */
first = &g_smscore_devices;
@@ -627,7 +625,7 @@ smscore_buffer_t *smscore_createbuffer(u8 *buffer, void *common_buffer,
{
struct smscore_buffer_t *cb;
- cb = kzalloc(sizeof(struct smscore_buffer_t), GFP_KERNEL);
+ cb = kzalloc(sizeof(*cb), GFP_KERNEL);
if (!cb)
return NULL;
@@ -655,7 +653,7 @@ int smscore_register_device(struct smsdevice_params_t *params,
struct smscore_device_t *dev;
u8 *buffer;
- dev = kzalloc(sizeof(struct smscore_device_t), GFP_KERNEL);
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
if (!dev)
return -ENOMEM;
@@ -1684,7 +1682,7 @@ static int smscore_validate_client(struct smscore_device_t *coredev,
pr_err("The msg ID already registered to another client.\n");
return -EEXIST;
}
- listentry = kzalloc(sizeof(struct smscore_idlist_t), GFP_KERNEL);
+ listentry = kzalloc(sizeof(*listentry), GFP_KERNEL);
if (!listentry)
return -ENOMEM;
@@ -1721,7 +1719,7 @@ int smscore_register_client(struct smscore_device_t *coredev,
return -EEXIST;
}
- newclient = kzalloc(sizeof(struct smscore_client_t), GFP_KERNEL);
+ newclient = kzalloc(sizeof(*newclient), GFP_KERNEL);
if (!newclient)
return -ENOMEM;
diff --git a/drivers/media/dvb-frontends/as102_fe.c b/drivers/media/dvb-frontends/as102_fe.c
index 1fb4ab21d786..b1c84ee914f0 100644
--- a/drivers/media/dvb-frontends/as102_fe.c
+++ b/drivers/media/dvb-frontends/as102_fe.c
@@ -455,7 +455,7 @@ struct dvb_frontend *as102_attach(const char *name,
struct as102_state *state;
struct dvb_frontend *fe;
- state = kzalloc(sizeof(struct as102_state), GFP_KERNEL);
+ state = kzalloc(sizeof(*state), GFP_KERNEL);
if (!state)
return NULL;
diff --git a/drivers/media/dvb-frontends/cx24113.c b/drivers/media/dvb-frontends/cx24113.c
index 8fc7333c76b7..2c5502cab5e1 100644
--- a/drivers/media/dvb-frontends/cx24113.c
+++ b/drivers/media/dvb-frontends/cx24113.c
@@ -552,8 +552,7 @@ struct dvb_frontend *cx24113_attach(struct dvb_frontend *fe,
const struct cx24113_config *config, struct i2c_adapter *i2c)
{
/* allocate memory for the internal state */
- struct cx24113_state *state =
- kzalloc(sizeof(struct cx24113_state), GFP_KERNEL);
+ struct cx24113_state *state = kzalloc(sizeof(*state), GFP_KERNEL);
int rc;
if (!state)
diff --git a/drivers/media/dvb-frontends/cx24116.c b/drivers/media/dvb-frontends/cx24116.c
index e5135fbe0297..531c5861a27e 100644
--- a/drivers/media/dvb-frontends/cx24116.c
+++ b/drivers/media/dvb-frontends/cx24116.c
@@ -1126,7 +1126,7 @@ struct dvb_frontend *cx24116_attach(const struct cx24116_config *config,
dprintk("%s\n", __func__);
/* allocate memory for the internal state */
- state = kzalloc(sizeof(struct cx24116_state), GFP_KERNEL);
+ state = kzalloc(sizeof(*state), GFP_KERNEL);
if (state == NULL)
goto error1;
diff --git a/drivers/media/dvb-frontends/ds3000.c b/drivers/media/dvb-frontends/ds3000.c
index 293c4103e5ff..3e347d03acb3 100644
--- a/drivers/media/dvb-frontends/ds3000.c
+++ b/drivers/media/dvb-frontends/ds3000.c
@@ -839,7 +839,7 @@ struct dvb_frontend *ds3000_attach(const struct ds3000_config *config,
dprintk("%s\n", __func__);
/* allocate memory for the internal state */
- state = kzalloc(sizeof(struct ds3000_state), GFP_KERNEL);
+ state = kzalloc(sizeof(*state), GFP_KERNEL);
if (!state)
goto error2;
diff --git a/drivers/media/dvb-frontends/mb86a20s.c b/drivers/media/dvb-frontends/mb86a20s.c
index 340984100aec..ba7a433dd424 100644
--- a/drivers/media/dvb-frontends/mb86a20s.c
+++ b/drivers/media/dvb-frontends/mb86a20s.c
@@ -2071,7 +2071,7 @@ struct dvb_frontend *mb86a20s_attach(const struct mb86a20s_config *config,
dev_dbg(&i2c->dev, "%s called.\n", __func__);
/* allocate memory for the internal state */
- state = kzalloc(sizeof(struct mb86a20s_state), GFP_KERNEL);
+ state = kzalloc(sizeof(*state), GFP_KERNEL);
if (!state)
goto error;
diff --git a/drivers/media/dvb-frontends/sp2.c b/drivers/media/dvb-frontends/sp2.c
index d3b4f8822096..dd556012ceb6 100644
--- a/drivers/media/dvb-frontends/sp2.c
+++ b/drivers/media/dvb-frontends/sp2.c
@@ -381,7 +381,7 @@ static int sp2_probe(struct i2c_client *client,
dev_dbg(&client->dev, "\n");
- s = kzalloc(sizeof(struct sp2), GFP_KERNEL);
+ s = kzalloc(sizeof(*s), GFP_KERNEL);
if (!s) {
ret = -ENOMEM;
goto err;
diff --git a/drivers/media/i2c/adv7842.c b/drivers/media/i2c/adv7842.c
index c582bcb782a6..136aa80a834b 100644
--- a/drivers/media/i2c/adv7842.c
+++ b/drivers/media/i2c/adv7842.c
@@ -3467,7 +3467,7 @@ static int adv7842_probe(struct i2c_client *client,
return -ENODEV;
}
- state = devm_kzalloc(&client->dev, sizeof(struct adv7842_state), GFP_KERNEL);
+ state = devm_kzalloc(&client->dev, sizeof(*state), GFP_KERNEL);
if (!state)
return -ENOMEM;
diff --git a/drivers/media/pci/cx18/cx18-driver.c b/drivers/media/pci/cx18/cx18-driver.c
index 9e99c6ef1476..6efa93168059 100644
--- a/drivers/media/pci/cx18/cx18-driver.c
+++ b/drivers/media/pci/cx18/cx18-driver.c
@@ -909,7 +909,7 @@ static int cx18_probe(struct pci_dev *pci_dev,
return -ENOMEM;
}
- cx = kzalloc(sizeof(struct cx18), GFP_ATOMIC);
+ cx = kzalloc(sizeof(*cx), GFP_ATOMIC);
if (!cx)
return -ENOMEM;
diff --git a/drivers/media/pci/mantis/hopper_cards.c b/drivers/media/pci/mantis/hopper_cards.c
index a96ac0144fd2..ecb97dc381fb 100644
--- a/drivers/media/pci/mantis/hopper_cards.c
+++ b/drivers/media/pci/mantis/hopper_cards.c
@@ -163,7 +163,7 @@ static int hopper_pci_probe(struct pci_dev *pdev,
struct mantis_hwconfig *config;
int err;
- mantis = kzalloc(sizeof(struct mantis_pci), GFP_KERNEL);
+ mantis = kzalloc(sizeof(*mantis), GFP_KERNEL);
if (mantis == NULL) {
err = -ENOMEM;
goto fail0;
diff --git a/drivers/media/pci/mantis/mantis_cards.c b/drivers/media/pci/mantis/mantis_cards.c
index 9958b6f4405f..4ce8a90d69dc 100644
--- a/drivers/media/pci/mantis/mantis_cards.c
+++ b/drivers/media/pci/mantis/mantis_cards.c
@@ -173,7 +173,7 @@ static int mantis_pci_probe(struct pci_dev *pdev,
struct mantis_hwconfig *config;
int err;
- mantis = kzalloc(sizeof(struct mantis_pci), GFP_KERNEL);
+ mantis = kzalloc(sizeof(*mantis), GFP_KERNEL);
if (!mantis)
return -ENOMEM;
diff --git a/drivers/media/pci/saa7146/hexium_gemini.c b/drivers/media/pci/saa7146/hexium_gemini.c
index 32c19bad9a17..d31a2d4494d1 100644
--- a/drivers/media/pci/saa7146/hexium_gemini.c
+++ b/drivers/media/pci/saa7146/hexium_gemini.c
@@ -260,7 +260,7 @@ static int hexium_attach(struct saa7146_dev *dev, struct saa7146_pci_extension_d
DEB_EE("\n");
- hexium = kzalloc(sizeof(struct hexium), GFP_KERNEL);
+ hexium = kzalloc(sizeof(*hexium), GFP_KERNEL);
if (!hexium)
return -ENOMEM;
diff --git a/drivers/media/pci/saa7146/hexium_orion.c b/drivers/media/pci/saa7146/hexium_orion.c
index 8d1dc8eea988..7dc182202f8b 100644
--- a/drivers/media/pci/saa7146/hexium_orion.c
+++ b/drivers/media/pci/saa7146/hexium_orion.c
@@ -219,7 +219,7 @@ static int hexium_probe(struct saa7146_dev *dev)
return -EFAULT;
}
- hexium = kzalloc(sizeof(struct hexium), GFP_KERNEL);
+ hexium = kzalloc(sizeof(*hexium), GFP_KERNEL);
if (!hexium)
return -ENOMEM;
diff --git a/drivers/media/pci/saa7164/saa7164-buffer.c b/drivers/media/pci/saa7164/saa7164-buffer.c
index 6bd665ea190d..c83b2e914dcb 100644
--- a/drivers/media/pci/saa7164/saa7164-buffer.c
+++ b/drivers/media/pci/saa7164/saa7164-buffer.c
@@ -98,7 +98,7 @@ struct saa7164_buffer *saa7164_buffer_alloc(struct saa7164_port *port,
goto ret;
}
- buf = kzalloc(sizeof(struct saa7164_buffer), GFP_KERNEL);
+ buf = kzalloc(sizeof(*buf), GFP_KERNEL);
if (!buf)
goto ret;
@@ -281,7 +281,7 @@ struct saa7164_user_buffer *saa7164_buffer_alloc_user(struct saa7164_dev *dev,
{
struct saa7164_user_buffer *buf;
- buf = kzalloc(sizeof(struct saa7164_user_buffer), GFP_KERNEL);
+ buf = kzalloc(sizeof(*buf), GFP_KERNEL);
if (!buf)
return NULL;
diff --git a/drivers/media/platform/atmel/atmel-isc.c b/drivers/media/platform/atmel/atmel-isc.c
index db410c558a74..755d2d4dd142 100644
--- a/drivers/media/platform/atmel/atmel-isc.c
+++ b/drivers/media/platform/atmel/atmel-isc.c
@@ -1505,7 +1505,7 @@ static int isc_formats_init(struct isc_device *isc)
isc->num_user_formats = num_fmts;
isc->user_formats = devm_kcalloc(isc->dev,
- num_fmts, sizeof(struct isc_format *),
+ num_fmts, sizeof(*isc->user_formats),
GFP_KERNEL);
if (!isc->user_formats)
return -ENOMEM;
diff --git a/drivers/media/usb/zr364xx/zr364xx.c b/drivers/media/usb/zr364xx/zr364xx.c
index b50cff4ef9eb..b3d05027bd9a 100644
--- a/drivers/media/usb/zr364xx/zr364xx.c
+++ b/drivers/media/usb/zr364xx/zr364xx.c
@@ -1421,7 +1421,7 @@ static int zr364xx_probe(struct usb_interface *intf,
le16_to_cpu(udev->descriptor.idVendor),
le16_to_cpu(udev->descriptor.idProduct));
- cam = kzalloc(sizeof(struct zr364xx_camera), GFP_KERNEL);
+ cam = kzalloc(sizeof(*cam), GFP_KERNEL);
if (!cam)
return -ENOMEM;