ACPI: asus_acpi: fix proc files parsing

ICC complains about a "Pointless comparsion of unsigned interger with zero"
@ line 760 & 808 of asus_acpi.c

parse_arg() mentioned below returns -E but it's copied into unsigned variable...

Signed-off-by: Darren Jenkins <darrenrjenkins@gmail.com>
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>

diff --git a/drivers/acpi/asus_acpi.c b/drivers/acpi/asus_acpi.c
index ebc033f87e791af9de77ef2250bbf137604fa1d5..33eaca108f4b2f4cba7e19bc6b655e9bf8b5d92e 100644 (file)
--- a/drivers/acpi/asus_acpi.c
+++ b/drivers/acpi/asus_acpi.c
@@ -567,11 +567,11 @@ static int
 write_led(const char __user * buffer, unsigned long count,
          char *ledname, int ledmask, int invert)
 {
-       int value;
+       int rv, value;
        int led_out = 0;
 
-       count = parse_arg(buffer, count, &value);
-       if (count > 0)
+       rv = parse_arg(buffer, count, &value);
+       if (rv > 0)
                led_out = value ? 1 : 0;
 
        hotk->status =
@@ -584,7 +584,7 @@ write_led(const char __user * buffer, unsigned long count,
                printk(KERN_WARNING "Asus ACPI: LED (%s) write failed\n",
                       ledname);
 
-       return count;
+       return rv;
 }
 
 /*
@@ -619,20 +619,20 @@ static int
 proc_write_ledd(struct file *file, const char __user * buffer,
                unsigned long count, void *data)
 {
-       int value;
+       int rv, value;
 
-       count = parse_arg(buffer, count, &value);
-       if (count > 0) {
+       rv = parse_arg(buffer, count, &value);
+       if (rv > 0) {
                if (!write_acpi_int
                    (hotk->handle, hotk->methods->mt_ledd, value, NULL))
                        printk(KERN_WARNING
                               "Asus ACPI: LED display write failed\n");
                else
                        hotk->ledd_status = (u32) value;
-       } else if (count < 0)
+       } else if (rv < 0)
                printk(KERN_WARNING "Asus ACPI: Error reading user input\n");
 
-       return count;
+       return rv;
 }
 
 /*
@@ -773,12 +773,12 @@ static int
 proc_write_lcd(struct file *file, const char __user * buffer,
               unsigned long count, void *data)
 {
-       int value;
+       int rv, value;
 
-       count = parse_arg(buffer, count, &value);
-       if (count > 0)
+       rv = parse_arg(buffer, count, &value);
+       if (rv > 0)
                set_lcd_state(value);
-       return count;
+       return rv;
 }
 
 static int read_brightness(void)
@@ -842,18 +842,18 @@ static int
 proc_write_brn(struct file *file, const char __user * buffer,
               unsigned long count, void *data)
 {
-       int value;
+       int rv, value;
 
-       count = parse_arg(buffer, count, &value);
-       if (count > 0) {
+       rv = parse_arg(buffer, count, &value);
+       if (rv > 0) {
                value = (0 < value) ? ((15 < value) ? 15 : value) : 0;
                /* 0 <= value <= 15 */
                set_brightness(value);
-       } else if (count < 0) {
+       } else if (rv < 0) {
                printk(KERN_WARNING "Asus ACPI: Error reading user input\n");
        }
 
-       return count;
+       return rv;
 }
 
 static void set_display(int value)
@@ -892,15 +892,15 @@ static int
 proc_write_disp(struct file *file, const char __user * buffer,
                unsigned long count, void *data)
 {
-       int value;
+       int rv, value;
 
-       count = parse_arg(buffer, count, &value);
-       if (count > 0)
+       rv = parse_arg(buffer, count, &value);
+       if (rv > 0)
                set_display(value);
-       else if (count < 0)
+       else if (rv < 0)
                printk(KERN_WARNING "Asus ACPI: Error reading user input\n");
 
-       return count;
+       return rv;
 }
 
 typedef int (proc_readfunc) (char *page, char **start, off_t off, int count,