Commit 05bce79e authored by Cyril Roelandt's avatar Cyril Roelandt Committed by Rafael J. Wysocki
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ACPI: drop unnecessary local variable from acpi_system_write_wakeup_device() 



The LEN variable is unsigned, therefore checking whether it is less than 0 is
useless. Also drop the LEN variable, since the COUNT parameter can be used
instead.

[rjw: Changed the subject.]
Signed-off-by: default avatarCyril Roelandt <tipecaml@gmail.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 66fd3835

drivers/acpi/proc.c

+4 −7
Original line number Diff line number Diff line
@@ -362,16 +362,13 @@ acpi_system_write_wakeup_device(struct file *file, 
	struct list_head *node, *next;

	char strbuf[5];

	char str[5] = "";

	unsigned int len = count;



	if (len > 4)

		len = 4;

	if (len < 0)

		return -EFAULT;

	if (count > 4)

		count = 4;



	if (copy_from_user(strbuf, buffer, len))

	if (copy_from_user(strbuf, buffer, count))

		return -EFAULT;

	strbuf[len] = '\0';

	strbuf[count] = '\0';

	sscanf(strbuf, "%s", str);



	mutex_lock(&acpi_device_lock);