drivers: misc: ti-st: Use int instead of fuzzy char for callback status
On mips and parisc:
drivers/bluetooth/btwilink.c: In function 'ti_st_open':
drivers/bluetooth/btwilink.c:174:21: warning: overflow in implicit constant conversion [-Woverflow]
hst->reg_status = -EINPROGRESS;
drivers/nfc/nfcwilink.c: In function 'nfcwilink_open':
drivers/nfc/nfcwilink.c:396:31: warning: overflow in implicit constant conversion [-Woverflow]
drv->st_register_cb_status = -EINPROGRESS;
There are actually two issues:
1. Whether "char" is signed or unsigned depends on the architecture.
As the completion callback data is used to pass a (negative) error
code, it should always be signed.
2. EINPROGRESS is 150 on mips, 245 on parisc.
Hence -EINPROGRESS doesn't fit in a signed 8-bit number.
Change the callback status from "char" to "int" to fix these.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/drivers/bluetooth/btwilink.c b/drivers/bluetooth/btwilink.c
index 24a652f..485281b 100644
--- a/drivers/bluetooth/btwilink.c
+++ b/drivers/bluetooth/btwilink.c
@@ -51,7 +51,7 @@
*/
struct ti_st {
struct hci_dev *hdev;
- char reg_status;
+ int reg_status;
long (*st_write) (struct sk_buff *);
struct completion wait_reg_completion;
};
@@ -83,7 +83,7 @@
* status.ti_st_open() function will wait for signal from this
* API when st_register() function returns ST_PENDING.
*/
-static void st_reg_completion_cb(void *priv_data, char data)
+static void st_reg_completion_cb(void *priv_data, int data)
{
struct ti_st *lhst = priv_data;
diff --git a/drivers/media/radio/wl128x/fmdrv_common.c b/drivers/media/radio/wl128x/fmdrv_common.c
index 3f9e6df..642b89c 100644
--- a/drivers/media/radio/wl128x/fmdrv_common.c
+++ b/drivers/media/radio/wl128x/fmdrv_common.c
@@ -1472,7 +1472,7 @@
* Called by ST layer to indicate protocol registration completion
* status.
*/
-static void fm_st_reg_comp_cb(void *arg, char data)
+static void fm_st_reg_comp_cb(void *arg, int data)
{
struct fmdev *fmdev;
diff --git a/drivers/misc/ti-st/st_core.c b/drivers/misc/ti-st/st_core.c
index dcdbd58..0005159 100644
--- a/drivers/misc/ti-st/st_core.c
+++ b/drivers/misc/ti-st/st_core.c
@@ -141,7 +141,7 @@
* This function is being called with spin lock held, protocol drivers are
* only expected to complete their waits and do nothing more than that.
*/
-static void st_reg_complete(struct st_data_s *st_gdata, char err)
+static void st_reg_complete(struct st_data_s *st_gdata, int err)
{
unsigned char i = 0;
pr_info(" %s ", __func__);
diff --git a/drivers/nfc/nfcwilink.c b/drivers/nfc/nfcwilink.c
index f81e500..3fbd18b 100644
--- a/drivers/nfc/nfcwilink.c
+++ b/drivers/nfc/nfcwilink.c
@@ -94,7 +94,7 @@
struct nci_dev *ndev;
unsigned long flags;
- char st_register_cb_status;
+ int st_register_cb_status;
long (*st_write) (struct sk_buff *);
struct completion completed;
@@ -320,7 +320,7 @@
}
/* Called by ST when registration is complete */
-static void nfcwilink_register_complete(void *priv_data, char data)
+static void nfcwilink_register_complete(void *priv_data, int data)
{
struct nfcwilink *drv = priv_data;
diff --git a/include/linux/ti_wilink_st.h b/include/linux/ti_wilink_st.h
index 0a0d568..f229302 100644
--- a/include/linux/ti_wilink_st.h
+++ b/include/linux/ti_wilink_st.h
@@ -71,7 +71,7 @@
enum proto_type type;
long (*recv) (void *, struct sk_buff *);
unsigned char (*match_packet) (const unsigned char *data);
- void (*reg_complete_cb) (void *, char data);
+ void (*reg_complete_cb) (void *, int data);
long (*write) (struct sk_buff *skb);
void *priv_data;