On Fri, Jan 07, 2011 at 08:12:27AM +0300, Dan Carpenter wrote:
> This is a copy-and-paste bug. We should be comparing 4 characters here
> instead of 3.
> --- a/drivers/gpu/vga/vga_switcheroo.c
> +++ b/drivers/gpu/vga/vga_switcheroo.c
> @@ -346,11 +346,11 @@ vga_switcheroo_debugfs_write(struct file *filp, const char __user *ubuf,
> if (strncmp(usercmd, "DIS", 3) == 0)
> client_id = VGA_SWITCHEROO_DIS;
>
> - if (strncmp(usercmd, "MIGD", 3) == 0) {
> + if (strncmp(usercmd, "MIGD", 4) == 0) {
> just_mux = true;
> client_id = VGA_SWITCHEROO_IGD;
> }
> - if (strncmp(usercmd, "MDIS", 3) == 0) {
> + if (strncmp(usercmd, "MDIS", 4) == 0) {
How about you NUL-terminate, and use strcmp().
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