staging: most: hdm-usb: remove repeated access to structure

This patch removes the repeated access to a struct member by assigning
its value to a local variable once.

Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/most/hdm-usb/hdm_usb.c b/drivers/staging/most/hdm-usb/hdm_usb.c
index b27544e..5b27e96 100644 (file)
--- a/drivers/staging/most/hdm-usb/hdm_usb.c
+++ b/drivers/staging/most/hdm-usb/hdm_usb.c
@@ -1073,16 +1073,18 @@ static int get_stat_reg_addr(const struct regs *regs, int size,
 static ssize_t show_value(struct most_dci_obj *dci_obj,
                          struct most_dci_attribute *attr, char *buf)
 {
+       const char *name = attr->attr.name;
        u16 val;
        u16 reg_addr;
        int err;
 
-       if (!strcmp(attr->attr.name, "arb_address"))
+       if (!strcmp(name, "arb_address"))
                return snprintf(buf, PAGE_SIZE, "%04x\n", dci_obj->reg_addr);
-       if (!strcmp(attr->attr.name, "arb_value"))
+
+       if (!strcmp(name, "arb_value"))
                reg_addr = dci_obj->reg_addr;
-       else if (get_static_reg_addr(ro_regs, attr->attr.name, &reg_addr) &&
-                get_static_reg_addr(rw_regs, attr->attr.name, &reg_addr))
+       else if (get_static_reg_addr(ro_regs, name, &reg_addr) &&
+                get_static_reg_addr(rw_regs, name, &reg_addr))
                return -EFAULT;
 
        err = drci_rd_reg(dci_obj->usb_device, reg_addr, &val);
@@ -1098,23 +1100,25 @@ static ssize_t store_value(struct most_dci_obj *dci_obj,
 {
        u16 val;
        u16 reg_addr;
+       const char *name = attr->attr.name;
        int err = kstrtou16(buf, 16, &val);
 
        if (err)
                return err;
 
-       if (!strcmp(attr->attr.name, "arb_address")) {
+       if (!strcmp(name, "arb_address")) {
                dci_obj->reg_addr = val;
                return count;
        }
-       if (!strcmp(attr->attr.name, "arb_value")) {
+
+       if (!strcmp(name, "arb_value")) {
                reg_addr = dci_obj->reg_addr;
-       } else if (!strcmp(attr->attr.name, "sync_ep")) {
+       } else if (!strcmp(name, "sync_ep")) {
                u16 ep = val;
 
                reg_addr = DRCI_REG_BASE + DRCI_COMMAND + ep * 16;
                val = 1;
-       } else if (get_static_reg_addr(ro_regs, attr->attr.name, &reg_addr)) {
+       } else if (get_static_reg_addr(ro_regs, name, &reg_addr)) {
                return -EFAULT;
        }