From: Michael Krufky <mkrufky@m1k.net>
To: Andrew Morton <akpm@osdl.org>
Cc: linux-kernel@vger.kernel.org, linux-dvb-maintainer@linuxtv.org
Subject: [PATCH 11/37] dvb: fix sparse warnings
Date: Tue, 01 Nov 2005 03:13:31 -0500 [thread overview]
Message-ID: <436723AB.1060400@m1k.net> (raw)
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[-- Attachment #2: 2374.patch --]
[-- Type: text/x-patch, Size: 4185 bytes --]
From: Peter Hagervall <hager@cs.umu.se>
Sparse warnings
- remove address space related warnings
Signed-off-by: Peter Hagervall <hager@cs.umu.se>
Signed-off-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
drivers/media/dvb/bt8xx/dst_ca.c | 27 ++++++++++++++-------------
1 file changed, 14 insertions(+), 13 deletions(-)
--- linux-2.6.14-git3.orig/drivers/media/dvb/bt8xx/dst_ca.c
+++ linux-2.6.14-git3/drivers/media/dvb/bt8xx/dst_ca.c
@@ -166,7 +166,7 @@
return 0;
}
-static int ca_get_slot_caps(struct dst_state *state, struct ca_caps *p_ca_caps, void *arg)
+static int ca_get_slot_caps(struct dst_state *state, struct ca_caps *p_ca_caps, void __user *arg)
{
int i;
u8 slot_cap[256];
@@ -192,20 +192,20 @@
p_ca_caps->descr_num = slot_cap[7];
p_ca_caps->descr_type = 1;
- if (copy_to_user((struct ca_caps *)arg, p_ca_caps, sizeof (struct ca_caps)))
+ if (copy_to_user(arg, p_ca_caps, sizeof (struct ca_caps)))
return -EFAULT;
return 0;
}
/* Need some more work */
-static int ca_get_slot_descr(struct dst_state *state, struct ca_msg *p_ca_message, void *arg)
+static int ca_get_slot_descr(struct dst_state *state, struct ca_msg *p_ca_message, void __user *arg)
{
return -EOPNOTSUPP;
}
-static int ca_get_slot_info(struct dst_state *state, struct ca_slot_info *p_ca_slot_info, void *arg)
+static int ca_get_slot_info(struct dst_state *state, struct ca_slot_info *p_ca_slot_info, void __user *arg)
{
int i;
static u8 slot_command[8] = {0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff};
@@ -238,19 +238,19 @@
} else
p_ca_slot_info->flags = 0;
- if (copy_to_user((struct ca_slot_info *)arg, p_ca_slot_info, sizeof (struct ca_slot_info)))
+ if (copy_to_user(arg, p_ca_slot_info, sizeof (struct ca_slot_info)))
return -EFAULT;
return 0;
}
-static int ca_get_message(struct dst_state *state, struct ca_msg *p_ca_message, void *arg)
+static int ca_get_message(struct dst_state *state, struct ca_msg *p_ca_message, void __user *arg)
{
u8 i = 0;
u32 command = 0;
- if (copy_from_user(p_ca_message, (void *)arg, sizeof (struct ca_msg)))
+ if (copy_from_user(p_ca_message, arg, sizeof (struct ca_msg)))
return -EFAULT;
if (p_ca_message->msg) {
@@ -266,7 +266,7 @@
switch (command) {
case CA_APP_INFO:
memcpy(p_ca_message->msg, state->messages, 128);
- if (copy_to_user((void *)arg, p_ca_message, sizeof (struct ca_msg)) )
+ if (copy_to_user(arg, p_ca_message, sizeof (struct ca_msg)) )
return -EFAULT;
break;
}
@@ -315,7 +315,7 @@
return 0;
}
-u32 asn_1_decode(u8 *asn_1_array)
+static u32 asn_1_decode(u8 *asn_1_array)
{
u8 length_field = 0, word_count = 0, count = 0;
u32 length = 0;
@@ -400,7 +400,7 @@
return 0;
}
-static int ca_send_message(struct dst_state *state, struct ca_msg *p_ca_message, void *arg)
+static int ca_send_message(struct dst_state *state, struct ca_msg *p_ca_message, void __user *arg)
{
int i = 0;
unsigned int ca_message_header_len;
@@ -414,7 +414,7 @@
}
dprintk(verbose, DST_CA_DEBUG, 1, " ");
- if (copy_from_user(p_ca_message, (void *)arg, sizeof (struct ca_msg)))
+ if (copy_from_user(p_ca_message, arg, sizeof (struct ca_msg)))
return -EFAULT;
if (p_ca_message->msg) {
@@ -461,13 +461,14 @@
return 0;
}
-static int dst_ca_ioctl(struct inode *inode, struct file *file, unsigned int cmd, void *arg)
+static int dst_ca_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long ioctl_arg)
{
struct dvb_device* dvbdev = (struct dvb_device*) file->private_data;
struct dst_state* state = (struct dst_state*) dvbdev->priv;
struct ca_slot_info *p_ca_slot_info;
struct ca_caps *p_ca_caps;
struct ca_msg *p_ca_message;
+ void __user *arg = (void __user *)ioctl_arg;
if ((p_ca_message = (struct ca_msg *) kmalloc(sizeof (struct ca_msg), GFP_KERNEL)) == NULL) {
dprintk(verbose, DST_CA_ERROR, 1, " Memory allocation failure");
@@ -583,7 +584,7 @@
static struct file_operations dst_ca_fops = {
.owner = THIS_MODULE,
- .ioctl = (void *)dst_ca_ioctl,
+ .ioctl = dst_ca_ioctl,
.open = dst_ca_open,
.release = dst_ca_release,
.read = dst_ca_read,
reply other threads:[~2005-11-01 8:14 UTC|newest]
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