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USB: sisusbvga: Change port variable from signed to unsigned

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commit 2df7405f79ce1674d73c2786fe1a8727c905d65b upstream.

Change a bunch of arguments of wrapper functions which pass signed
integer to an unsigned integer which might cause undefined behaviors
when sign integer overflow.

Signed-off-by: Changming Liu <liu.changm@northeastern.edu>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/BL0PR06MB45482D71EA822D75A0E60A2EE5D50@BL0PR06MB4548.namprd06.prod.outlook.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Changming Liu 2020-04-20 23:41:25 -04:00 committed by Greg Kroah-Hartman
parent e21c8c03af
commit 56d0f59a4e
2 changed files with 17 additions and 17 deletions
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20
drivers/usb/misc/sisusbvga/sisusb.c
View File

@ -1198,18 +1198,18 @@ static int sisusb_read_mem_bulk(struct sisusb_usb_data *sisusb, u32 addr,
/* High level: Gfx (indexed) register access */
#ifdef INCL_SISUSB_CON
int sisusb_setreg(struct sisusb_usb_data *sisusb, int port, u8 data)
int sisusb_setreg(struct sisusb_usb_data *sisusb, u32 port, u8 data)
{
return sisusb_write_memio_byte(sisusb, SISUSB_TYPE_IO, port, data);
}
int sisusb_getreg(struct sisusb_usb_data *sisusb, int port, u8 *data)
int sisusb_getreg(struct sisusb_usb_data *sisusb, u32 port, u8 *data)
{
return sisusb_read_memio_byte(sisusb, SISUSB_TYPE_IO, port, data);
}
#endif
int sisusb_setidxreg(struct sisusb_usb_data *sisusb, int port,
int sisusb_setidxreg(struct sisusb_usb_data *sisusb, u32 port,
u8 index, u8 data)
{
int ret;
@ -1219,7 +1219,7 @@ int sisusb_setidxreg(struct sisusb_usb_data *sisusb, int port,
return ret;
}
int sisusb_getidxreg(struct sisusb_usb_data *sisusb, int port,
int sisusb_getidxreg(struct sisusb_usb_data *sisusb, u32 port,
u8 index, u8 *data)
{
int ret;
@ -1229,7 +1229,7 @@ int sisusb_getidxreg(struct sisusb_usb_data *sisusb, int port,
return ret;
}
int sisusb_setidxregandor(struct sisusb_usb_data *sisusb, int port, u8 idx,
int sisusb_setidxregandor(struct sisusb_usb_data *sisusb, u32 port, u8 idx,
u8 myand, u8 myor)
{
int ret;
@ -1244,7 +1244,7 @@ int sisusb_setidxregandor(struct sisusb_usb_data *sisusb, int port, u8 idx,
}
static int sisusb_setidxregmask(struct sisusb_usb_data *sisusb,
int port, u8 idx, u8 data, u8 mask)
u32 port, u8 idx, u8 data, u8 mask)
{
int ret;
u8 tmp;
@ -1257,13 +1257,13 @@ static int sisusb_setidxregmask(struct sisusb_usb_data *sisusb,
return ret;
}
int sisusb_setidxregor(struct sisusb_usb_data *sisusb, int port,
int sisusb_setidxregor(struct sisusb_usb_data *sisusb, u32 port,
u8 index, u8 myor)
{
return sisusb_setidxregandor(sisusb, port, index, 0xff, myor);
}
int sisusb_setidxregand(struct sisusb_usb_data *sisusb, int port,
int sisusb_setidxregand(struct sisusb_usb_data *sisusb, u32 port,
u8 idx, u8 myand)
{
return sisusb_setidxregandor(sisusb, port, idx, myand, 0x00);
@ -2786,8 +2786,8 @@ static loff_t sisusb_lseek(struct file *file, loff_t offset, int orig)
static int sisusb_handle_command(struct sisusb_usb_data *sisusb,
struct sisusb_command *y, unsigned long arg)
{
int retval, port, length;
u32 address;
int retval, length;
u32 port, address;
/* All our commands require the device
* to be initialized.

14
drivers/usb/misc/sisusbvga/sisusb_init.h
View File

@ -811,17 +811,17 @@ static const struct SiS_VCLKData SiSUSB_VCLKData[] = {
int SiSUSBSetMode(struct SiS_Private *SiS_Pr, unsigned short ModeNo);
int SiSUSBSetVESAMode(struct SiS_Private *SiS_Pr, unsigned short VModeNo);
extern int sisusb_setreg(struct sisusb_usb_data *sisusb, int port, u8 data);
extern int sisusb_getreg(struct sisusb_usb_data *sisusb, int port, u8 * data);
extern int sisusb_setidxreg(struct sisusb_usb_data *sisusb, int port,
extern int sisusb_setreg(struct sisusb_usb_data *sisusb, u32 port, u8 data);
extern int sisusb_getreg(struct sisusb_usb_data *sisusb, u32 port, u8 * data);
extern int sisusb_setidxreg(struct sisusb_usb_data *sisusb, u32 port,
u8 index, u8 data);
extern int sisusb_getidxreg(struct sisusb_usb_data *sisusb, int port,
extern int sisusb_getidxreg(struct sisusb_usb_data *sisusb, u32 port,
u8 index, u8 * data);
extern int sisusb_setidxregandor(struct sisusb_usb_data *sisusb, int port,
extern int sisusb_setidxregandor(struct sisusb_usb_data *sisusb, u32 port,
u8 idx, u8 myand, u8 myor);
extern int sisusb_setidxregor(struct sisusb_usb_data *sisusb, int port,
extern int sisusb_setidxregor(struct sisusb_usb_data *sisusb, u32 port,
u8 index, u8 myor);
extern int sisusb_setidxregand(struct sisusb_usb_data *sisusb, int port,
extern int sisusb_setidxregand(struct sisusb_usb_data *sisusb, u32 port,
u8 idx, u8 myand);
void sisusb_delete(struct kref *kref);