kvm tools: Cleanup strstr() in expression

Cleanup use of strstr() in an expression in main() function.

Signed-off-by: Pekka Enberg <penberg@kernel.org>

diff --git a/tools/kvm/main.c b/tools/kvm/main.c
index 3165bc7489fd56ab689501c9123cdf35cbf1aa3f..ec729c03eb5c988fafa0a78b7f00f6c64d697d1e 100644 (file)
--- a/tools/kvm/main.c
+++ b/tools/kvm/main.c
@@ -149,7 +149,7 @@ int main(int argc, char *argv[])
        kvm__setup_cpuid(kvm);
 
        strcpy(real_cmdline, "notsc nolapic nosmp noacpi pci=conf1 console=ttyS0 ");
-       if (!kernel_cmdline || (strstr(kernel_cmdline, "root=") == NULL))
+       if (!kernel_cmdline || !strstr(kernel_cmdline, "root="))
                strlcat(real_cmdline, "root=/dev/vda rw ", sizeof(real_cmdline));
 
        if (kernel_cmdline) {