diff options
Diffstat (limited to 'drivers/parport/procfs.c')
| -rw-r--r-- | drivers/parport/procfs.c | 45 |
1 files changed, 23 insertions, 22 deletions
diff --git a/drivers/parport/procfs.c b/drivers/parport/procfs.c index 48804049d697..d740eba3c099 100644 --- a/drivers/parport/procfs.c +++ b/drivers/parport/procfs.c @@ -34,7 +34,7 @@ #define PARPORT_MAX_SPINTIME_VALUE 1000 static int do_active_device(struct ctl_table *table, int write, - void __user *result, size_t *lenp, loff_t *ppos) + void *result, size_t *lenp, loff_t *ppos) { struct parport *port = (struct parport *)table->extra1; char buffer[256]; @@ -65,13 +65,13 @@ static int do_active_device(struct ctl_table *table, int write, *lenp = len; *ppos += len; - - return copy_to_user(result, buffer, len) ? -EFAULT : 0; + memcpy(result, buffer, len); + return 0; } #ifdef CONFIG_PARPORT_1284 static int do_autoprobe(struct ctl_table *table, int write, - void __user *result, size_t *lenp, loff_t *ppos) + void *result, size_t *lenp, loff_t *ppos) { struct parport_device_info *info = table->extra2; const char *str; @@ -108,13 +108,13 @@ static int do_autoprobe(struct ctl_table *table, int write, *ppos += len; - return copy_to_user (result, buffer, len) ? -EFAULT : 0; + memcpy(result, buffer, len); + return 0; } #endif /* IEEE1284.3 support. */ static int do_hardware_base_addr(struct ctl_table *table, int write, - void __user *result, - size_t *lenp, loff_t *ppos) + void *result, size_t *lenp, loff_t *ppos) { struct parport *port = (struct parport *)table->extra1; char buffer[20]; @@ -136,13 +136,12 @@ static int do_hardware_base_addr(struct ctl_table *table, int write, *lenp = len; *ppos += len; - - return copy_to_user(result, buffer, len) ? -EFAULT : 0; + memcpy(result, buffer, len); + return 0; } static int do_hardware_irq(struct ctl_table *table, int write, - void __user *result, - size_t *lenp, loff_t *ppos) + void *result, size_t *lenp, loff_t *ppos) { struct parport *port = (struct parport *)table->extra1; char buffer[20]; @@ -164,13 +163,12 @@ static int do_hardware_irq(struct ctl_table *table, int write, *lenp = len; *ppos += len; - - return copy_to_user(result, buffer, len) ? -EFAULT : 0; + memcpy(result, buffer, len); + return 0; } static int do_hardware_dma(struct ctl_table *table, int write, - void __user *result, - size_t *lenp, loff_t *ppos) + void *result, size_t *lenp, loff_t *ppos) { struct parport *port = (struct parport *)table->extra1; char buffer[20]; @@ -192,13 +190,12 @@ static int do_hardware_dma(struct ctl_table *table, int write, *lenp = len; *ppos += len; - - return copy_to_user(result, buffer, len) ? -EFAULT : 0; + memcpy(result, buffer, len); + return 0; } static int do_hardware_modes(struct ctl_table *table, int write, - void __user *result, - size_t *lenp, loff_t *ppos) + void *result, size_t *lenp, loff_t *ppos) { struct parport *port = (struct parport *)table->extra1; char buffer[40]; @@ -213,7 +210,11 @@ static int do_hardware_modes(struct ctl_table *table, int write, return -EACCES; { -#define printmode(x) {if(port->modes&PARPORT_MODE_##x){len+=sprintf(buffer+len,"%s%s",f?",":"",#x);f++;}} +#define printmode(x) \ +do { \ + if (port->modes & PARPORT_MODE_##x) \ + len += sprintf(buffer + len, "%s%s", f++ ? "," : "", #x); \ +} while (0) int f = 0; printmode(PCSPP); printmode(TRISTATE); @@ -231,8 +232,8 @@ static int do_hardware_modes(struct ctl_table *table, int write, *lenp = len; *ppos += len; - - return copy_to_user(result, buffer, len) ? -EFAULT : 0; + memcpy(result, buffer, len); + return 0; } #define PARPORT_PORT_DIR(CHILD) { .procname = NULL, .mode = 0555, .child = CHILD } |